Unit 2 Exam
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Last updated about 5 years ago
75 questions
2
Which of the following most closely illustrates motion by relating it to a reference point?
Which of the following most closely illustrates motion by relating it to a reference point?
2
Which of the following are two factors that determine speed?
Which of the following are two factors that determine speed?
2
Which of the following explains the difference between speed and velocity?
Which of the following explains the difference between speed and velocity?
2
Which of the following best represents acceleration as presented on a graph?
Which of the following best represents acceleration as presented on a graph?
2
Which of the following choices best represents force?
Which of the following choices best represents force?
2
Which of the following best determines the net force when more than one force is acting on an object?
Which of the following best determines the net force when more than one force is acting on an object?
2
When the net forces equal 0 N, they are which of the following?
When the net forces equal 0 N, they are which of the following?
2
Which of the following always causes a change in speed, direction or both?
Which of the following always causes a change in speed, direction or both?
2
What is force that opposes motion between two surfaces that are in contact?
What is force that opposes motion between two surfaces that are in contact?
2
Which are the two factors that determine the amount of friction?
Which are the two factors that determine the amount of friction?
2
Which of these is opposed by kinetic friction?
Which of these is opposed by kinetic friction?
2
Which of these is opposed by static friction?
Which of these is opposed by static friction?
2
In which of the following activities is friction helpful?
In which of the following activities is friction helpful?
2
In which of the following activities is friction harmful?
In which of the following activities is friction harmful?
2
Which would NOT be a way to reduce friction?
Which would NOT be a way to reduce friction?
2
All matter has mass,
All matter has mass,
2
As the distance between two objects increases, the force of gravity between them
As the distance between two objects increases, the force of gravity between them
2
Which of the following does NOT describe weight?
Which of the following does NOT describe weight?
2
What is an object that appears to stay in place and that helps you detect motion in another object?
What is an object that appears to stay in place and that helps you detect motion in another object?
2
To calculate an object's average acceleration, you need to know
To calculate an object's average acceleration, you need to know
2
The gravitational force is greater between two objects that
The gravitational force is greater between two objects that
2
What is the net force on an object when you combine a force of 10 N north with a force of 5 N south?
What is the net force on an object when you combine a force of 10 N north with a force of 5 N south?
2
Mass is
Mass is
2
Dividing the total distance traveled by the total time is how to calculate
Dividing the total distance traveled by the total time is how to calculate
2
If a baseball and a cannonball are dropped from the same height at the same time, and there is no air resistance, which ball will hit the ground first?
If a baseball and a cannonball are dropped from the same height at the same time, and there is no air resistance, which ball will hit the ground first?
2
What feature of an object does NOT affect air resistance?
What feature of an object does NOT affect air resistance?
2
Why do astronauts in space appear weightless?
Why do astronauts in space appear weightless?
2
In what direction(s) is(are) a projectile accelerated?
In what direction(s) is(are) a projectile accelerated?
2
The reaction force of the stool that you are sitting on
The reaction force of the stool that you are sitting on
2
Which of the following is the equation for Newton's second law of motion?
Which of the following is the equation for Newton's second law of motion?
2
When a train increases its velocity, its momentum
When a train increases its velocity, its momentum
2
A car with a mass of 1400 kg moves along the ice with a constant velocity of 18.0 m/s. What is the car's momentum?
A car with a mass of 1400 kg moves along the ice with a constant velocity of 18.0 m/s. What is the car's momentum?
2
When a bowling ball collides with a bowling pin,
When a bowling ball collides with a bowling pin,
2
If an action force is a cue ball hitting a billiard ball, then the reaction force is
If an action force is a cue ball hitting a billiard ball, then the reaction force is
2
Which of the following is NOT an example of projectile motion?
Which of the following is NOT an example of projectile motion?
2
Which of the following objects has the least acceleration?
Which of the following objects has the least acceleration?
2
When a moving bumper car collides with a bumper car at rest, which of the following occurs?
When a moving bumper car collides with a bumper car at rest, which of the following occurs?
2
A crumpled piece of paper hits the ground before a flat sheet of paper because
A crumpled piece of paper hits the ground before a flat sheet of paper because
2
Assuming 1 kg = 1000 g, a 5 kg object has less inertia than an object with a mass of
Assuming 1 kg = 1000 g, a 5 kg object has less inertia than an object with a mass of
2
According to Newton's First Law of Motion, a moving object that is not acted on by an unbalanced force will
According to Newton's First Law of Motion, a moving object that is not acted on by an unbalanced force will
2
A cue ball rolls toward a billiard ball with a velocity of 1.0 m/s east. Both balls have identical masses. What happens to the total momentum after the two balls collide?
A cue ball rolls toward a billiard ball with a velocity of 1.0 m/s east. Both balls have identical masses. What happens to the total momentum after the two balls collide?
2
Which of the following is NOT an action/reaction force pair?
Which of the following is NOT an action/reaction force pair?
2
An ice skater with a mass of 65 kg moves along the ice with a constant velocity of 2.0 m/s. What is the ice skater's momentum?
An ice skater with a mass of 65 kg moves along the ice with a constant velocity of 2.0 m/s. What is the ice skater's momentum?
2
Why does a ball that is thrown horizontally follow a path that is curved downward?
Why does a ball that is thrown horizontally follow a path that is curved downward?
2
If three balls made of steel, rubber and plastic were dropped at the same time from the same height, which would hit the ground first assuming no air resistance?
If three balls made of steel, rubber and plastic were dropped at the same time from the same height, which would hit the ground first assuming no air resistance?
2
A spacecraft orbiting the Earth is both moving forward and
A spacecraft orbiting the Earth is both moving forward and
2
Newton's first law of motion states that a moving object, unless it is acted on by an unbalanced force, will
Newton's first law of motion states that a moving object, unless it is acted on by an unbalanced force, will
2
An astronaut uses a jet of nitrogen to maneuver in space. This can be done because of
An astronaut uses a jet of nitrogen to maneuver in space. This can be done because of
2
A book weighs 6 N. If the acceleration due to gravity is 9.8 m/s2, what is the mass of the book in kg?
A book weighs 6 N. If the acceleration due to gravity is 9.8 m/s2, what is the mass of the book in kg?
2
A falling object's terminal velocity is reached when the force of gravity
A falling object's terminal velocity is reached when the force of gravity
2
What is the S.I. unit for pressure called?
What is the S.I. unit for pressure called?
2
Why doesn't ice float in air?
Why doesn't ice float in air?
2
How does atmospheric pressure change as you go from the top of a mountain to sea level?
How does atmospheric pressure change as you go from the top of a mountain to sea level?
2
Upon what does a soap bubble's shape depend?
Upon what does a soap bubble's shape depend?
2
Which of the following does NOT affect an airplane's lift?
Which of the following does NOT affect an airplane's lift?
2
In which of the following locations would the atmospheric pressure be greatest?
In which of the following locations would the atmospheric pressure be greatest?
2
When a fluid flows from area A to area B, area A is an area of greater
When a fluid flows from area A to area B, area A is an area of greater
2
Why do air bubbles in water rise to the surface?
Why do air bubbles in water rise to the surface?
2
Because fluid pressure is exerted evenly in all directions,
Because fluid pressure is exerted evenly in all directions,
2
Which of the following does NOT affect the amount of lift on an airplane's wing?
Which of the following does NOT affect the amount of lift on an airplane's wing?
2
Which of the following would NOT affect the level at which a ship cruises at sea?
Which of the following would NOT affect the level at which a ship cruises at sea?
2
Which of the following statements about fluids is NOT true?
Which of the following statements about fluids is NOT true?
2
When air is pumped into a tire,
When air is pumped into a tire,
2
Water pressure
Water pressure
2
Which of the following is affected by an airplane's speed?
Which of the following is affected by an airplane's speed?
2
Which of the following would NOT affect the level at which a canoe floats in a body of water?
Which of the following would NOT affect the level at which a canoe floats in a body of water?
2
Why would a pilot adjust a plane's wing flaps?
Why would a pilot adjust a plane's wing flaps?
2
Which of the following substances is less dense than air?
Which of the following substances is less dense than air?
2
What is the equation for pressure?
What is the equation for pressure?
2
When you exhale, what happens in the lungs?
When you exhale, what happens in the lungs?
2
Pressure exerted on a diver 10 m underwater is
Pressure exerted on a diver 10 m underwater is
1
What causes air to rush into a tornado?
What causes air to rush into a tornado?
2
What happens in the lungs when you exhale?
What happens in the lungs when you exhale?
2
In which 10 km interval does air pressure change the most?
In which 10 km interval does air pressure change the most?
2
What conclusion can you draw from this graph?
What conclusion can you draw from this graph?