Fall 2022 Final Honors
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Last updated over 1 year ago
30 questions
1
The graph shows the distance an object traveled over time. Which line segment represents the time interval during which the object was moving at a positive constant speed?
The graph shows the distance an object traveled over time. Which line segment represents the time interval during which the object was moving at a positive constant speed?
1
A student attempts to measure the mass of a brick by measuring the force required to accelerate it at 1 m s 2 on a level surface. The force required is 2 N, and the student concludes that the brick has a mass of 2 kg. A balance shows that the mass of the brick is really 1.5 kg. The experimental error is most likely due to
A student attempts to measure the mass of a brick by measuring the force required to accelerate it at 1 m s 2 on a level surface. The force required is 2 N, and the student concludes that the brick has a mass of 2 kg. A balance shows that the mass of the brick is really 1.5 kg. The experimental error is most likely due to
1
The graph shows how the position of an object changes over time. What is the velocity of the object during the time interval from 4 seconds to 10 seconds?
The graph shows how the position of an object changes over time. What is the velocity of the object during the time interval from 4 seconds to 10 seconds?
1
The figure shows a block that is being pulled along the floor. According to the figure, what is the acceleration of the block?
The figure shows a block that is being pulled along the floor. According to the figure, what is the acceleration of the block?
1
A projectile was launched horizontally with a velocity of 468 m/s, 1.86 m above the ground. How long did it take the projectile to hit the ground?
A projectile was launched horizontally with a velocity of 468 m/s, 1.86 m above the ground. How long did it take the projectile to hit the ground?
1
This diagram shows a ramp with a toy car at the bottom. A string is attached to the front of the car and the string goes over a pulley at the top of the ramp. A weight is attached to the other end of the string. What would be most responsible for the toy car being pulled up the ramp?
This diagram shows a ramp with a toy car at the bottom. A string is attached to the front of the car and the string goes over a pulley at the top of the ramp. A weight is attached to the other end of the string. What would be most responsible for the toy car being pulled up the ramp?
1
A ball is thrown with a velocity of 17.6 m/s at an angle of 40.0o to the horizontal. What horizontal distance measured along the ground does the ball travel before striking the ground?
A ball is thrown with a velocity of 17.6 m/s at an angle of 40.0o to the horizontal. What horizontal distance measured along the ground does the ball travel before striking the ground?
1
The graph represents the velocity of a car. What is the displacement of the car during the time interval shown?
The graph represents the velocity of a car. What is the displacement of the car during the time interval shown?
Driving Home Newton's Laws of Motion
Automobiles, baseballs, skateboards and bicycles --the world is full of things that are in motion. Centuries ago the British physicist Sir Isaac Newton stated three laws that describe the ways in which things move. These are Newton's three laws of motion:
The first law: Unless acted upon by an outside force, a body at rest tends to stay at rest, and a body in motion tends to stay in motion.
The second law: Acceleration is equal to the net force acting on a body divided by its mass.
The third law: For every action force there is an equal and opposite reaction force.
A driver starts her car and steps on the gas pedal. The car gradually accelerates to 50 km/hr. A few minutes later, the driver suddenly slams on the brakes to avoid hitting a box in the road. As the car comes to a stop, the driver's body appears to lurch forward in the seat until it is restrained by the seatbelt.
1
What law best explains why the driver's body appears to lurch forward when the brakes are suddenly applied?
What law best explains why the driver's body appears to lurch forward when the brakes are suddenly applied?
1
A force of 5 N is required to increase the speed of a box from a rate of 1.0 m/s to 3.0 m/s within 5 s along a level surface. What change would most likely require additional force to produce the same results?
A force of 5 N is required to increase the speed of a box from a rate of 1.0 m/s to 3.0 m/s within 5 s along a level surface. What change would most likely require additional force to produce the same results?
1
A hot air balloon exerts a force of 1200 N while lifting a load of 800 N. Which free-body force diagram depicts the forces involved?
A hot air balloon exerts a force of 1200 N while lifting a load of 800 N. Which free-body force diagram depicts the forces involved?
1
A student pushes a book across a classroom table. Which of the following statements best explains the difference between the amount of force needed to start the book moving and the amount of force needed to keep it moving?
A student pushes a book across a classroom table. Which of the following statements best explains the difference between the amount of force needed to start the book moving and the amount of force needed to keep it moving?
1
A student is driving her car when an insect strikes her windshield. Which of the following statements best describes the forces in this situation?
A student is driving her car when an insect strikes her windshield. Which of the following statements best describes the forces in this situation?
1
Consider this distance vs. time graph of an object. During which intervals is the object being acted on by a force?
Consider this distance vs. time graph of an object. During which intervals is the object being acted on by a force?
1
The illustration shows a car slowing down. The car was initially traveling at 15 m/s. The car slows with a negative acceleration of 4.5 m/s2 . How long does it take the car to slow to a fi nal velocity of 4.0 m/s?
The illustration shows a car slowing down. The car was initially traveling at 15 m/s. The car slows with a negative acceleration of 4.5 m/s2 . How long does it take the car to slow to a fi nal velocity of 4.0 m/s?
1
A rhinoceros is moving west at a velocity of 1 m/s with a tickbird on its back. The tickbird walks east at a velocity of 0.25 m/s relative to the rhinoceros. A photographer stands still to observe the animals. At what velocity is the tickbird traveling with respect to the photographer?
A rhinoceros is moving west at a velocity of 1 m/s with a tickbird on its back. The tickbird walks east at a velocity of 0.25 m/s relative to the rhinoceros. A photographer stands still to observe the animals. At what velocity is the tickbird traveling with respect to the photographer?
1
A ball is dropped from the top of a tall building. As the ball falls, the upward force of air resistance becomes equal to the downward pull of gravity. When these two forces become equal in magnitude, the ball will
A ball is dropped from the top of a tall building. As the ball falls, the upward force of air resistance becomes equal to the downward pull of gravity. When these two forces become equal in magnitude, the ball will
1
A small stone is shot straight up in the air. The figure shows a plot of the stone's position vs. time (air resistance is ignored). When is the stone moving the fastest?
A small stone is shot straight up in the air. The figure shows a plot of the stone's position vs. time (air resistance is ignored). When is the stone moving the fastest?
1
A student in a lab experiment jumps upward off a common bathroom scale as the lab partner records the scale reading. What does the lab partner observe during the instant the student pushes off?
A student in a lab experiment jumps upward off a common bathroom scale as the lab partner records the scale reading. What does the lab partner observe during the instant the student pushes off?
1
What is the magnitude of the force needed to keep a 60.-newton rubber block moving across level, dry asphalt in a straight line at a constant speed of 2.0 meters per second? The coefficient of kinetic friction of rubber on dry asphalt is 0.67 and the coefficient of static friction is 0.85.
What is the magnitude of the force needed to keep a 60.-newton rubber block moving across level, dry asphalt in a straight line at a constant speed of 2.0 meters per second? The coefficient of kinetic friction of rubber on dry asphalt is 0.67 and the coefficient of static friction is 0.85.
1
The diagram here represents a ball being kicked by a foot and rising at an angle of 30o from the horizontal. The ball has an initial velocity of 5.0 m/s. [Neglect friction.] What is the magnitude of the horizontal component of the ball's initial velocity?
The diagram here represents a ball being kicked by a foot and rising at an angle of 30o from the horizontal. The ball has an initial velocity of 5.0 m/s. [Neglect friction.] What is the magnitude of the horizontal component of the ball's initial velocity?
1
After a baseball is thrown up into the air, it will eventually fall back down to Earth. Which graph best demonstrates the relationship between time and distance from Earth as the baseball falls?
After a baseball is thrown up into the air, it will eventually fall back down to Earth. Which graph best demonstrates the relationship between time and distance from Earth as the baseball falls?
1
The path of a kicked football is shown in the diagram. The dashed line shows the path of the ball if the air resistance is neglected. Point X is a point along the path. Which arrow points in the direction of the acceleration?
The path of a kicked football is shown in the diagram. The dashed line shows the path of the ball if the air resistance is neglected. Point X is a point along the path. Which arrow points in the direction of the acceleration?
1
The diagram shows a student applying a 10-newton force to slide a piece of wood at constant speed across a horizontal surface. After the wood is cut in half, one piece is placed on top of the other, as shown. What is the magnitude of the force, F, required to slide the stacked wood at constant speed across the surface?
The diagram shows a student applying a 10-newton force to slide a piece of wood at constant speed across a horizontal surface. After the wood is cut in half, one piece is placed on top of the other, as shown. What is the magnitude of the force, F, required to slide the stacked wood at constant speed across the surface?
1
When a 12-newton horizontal force is applied to a box on a horizontal tabletop, the box remains at rest. The force of static friction acting on the box is
When a 12-newton horizontal force is applied to a box on a horizontal tabletop, the box remains at rest. The force of static friction acting on the box is
1
A 13-N east horizontal force acts in the same direction as a 6.4-kg block as it slides 2.5 m/s on a frictionless, horizontal surface for 2.1 s. What is the speed of the block after force is applied?
A 13-N east horizontal force acts in the same direction as a 6.4-kg block as it slides 2.5 m/s on a frictionless, horizontal surface for 2.1 s. What is the speed of the block after force is applied?
1
A ball is dropped from rest from a height 6.0 meters above the ground. The ball falls freely and reaches the ground 1.1 seconds later. What is the average speed of the ball?
A ball is dropped from rest from a height 6.0 meters above the ground. The ball falls freely and reaches the ground 1.1 seconds later. What is the average speed of the ball?
1
A person starts driving and travels 3 km east to a store. The person then turns around and travels 1 km west to another store. Finally, the person travels 2 km west, back to the starting point. What distance has this person traveled?
A person starts driving and travels 3 km east to a store. The person then turns around and travels 1 km west to another store. Finally, the person travels 2 km west, back to the starting point. What distance has this person traveled?
1
A technician wants to predict the velocity of a car that is accelerating at a constant rate. Which graph will help the technician with his prediction?
A technician wants to predict the velocity of a car that is accelerating at a constant rate. Which graph will help the technician with his prediction?
1
A boat initially traveling at 10 meters per second accelerates uniformly at the rate of 5.0 m/s2 for 10 seconds. How far does the boat travel during this time?
A boat initially traveling at 10 meters per second accelerates uniformly at the rate of 5.0 m/s2 for 10 seconds. How far does the boat travel during this time?