What is the acceleration of a subway train that starts with a velocity of 9.6 m/s and has a final velocity of 12 m/s in 0.8 seconds on a straight track?
Question 7
7.
An object with a mass of 5.0 kgaccelerates 8.0 m/s2 when an unknown force is applied to it. What is the amount of the force?
Question 8
8.
An object accelerates 16.3 m/s2 when a force of 4.6 newtons is applied to it. What is the mass of the object?
Question 9
9.
A rock tumbled down a hill. The rock has a force of 133 Newtons. The rock's mass was 38 kg. What is the rock's acceleration?
Question 10
10.
Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.
Question 15
15.
Question 16
16.
Some pilots of hot-air balloons are getting ready to launch their balloons. Each pilot lights the flame to heat the air in her balloon. Then, the surrounding air applies a force to each balloon to lift it up.
Each hot-air balloon has the same acceleration as it starts to rise. Order the colors to show the size of the force applied to each balloon.
A collision in which objects collide and bounce apart
Speed
Velocity
Momentum
Elastic Collision
Inertia
Inelastic Collision
Acceleration
Known as mass in motion
Speed
Velocity
Momentum
Elastic Collision
Inertia
Inelastic Collision
Acceleration
The rate or speed an object moves in a given direction
Speed
Velocity
Momentum
Elastic Collision
Inertia
Inelastic Collision
Acceleration
The change in rate or speed an object moves in a given direction
Speed
Velocity
Momentum
Elastic Collision
Inertia
Inelastic Collision
Acceleration
A collision in which objects collide and get ‘stuck’ together
Speed
Velocity
Momentum
Elastic Collision
Inertia
Inelastic Collision
Acceleration
According to Newton’s second law of motion, force equals mass times
Velocity
Momentum
Mass
Acceleration
Pushing off the wall at the ice skating rink and going the opposite direction is an example of Newton’s
1st Law
2nd Law
3rd Law
None of the Laws
A driver without a seat belt getting thrown from the car in a collision is an example of Newton’s
1st Law
2nd Law
3rd Law
None of the Laws
A cart accelerating slower when mass was increased is an example of Newton’s
1st Law
2nd Law
3rd Law
None of the Laws
When a swimmer swims through water,
the action force could be the swimmer's hands and feet pushing on the water.
the reaction force could be the water pushing on the hands and feet.
the reaction force is what moves the swimmer forward.
All of the above
Which one has the MOST momentum?
An empty train moving at 30 miles per hour
A fully loaded cargo train moving at 30 miles per hour