force and motion

How do you make a ball move?

• kick it

• touch it

• throw it

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

What is in motion? Which force can make it move?

• clouds - water

• ground - gravity

• wind turbine - wind

7. A ball is sitting loose in the moving wagon pictured below. If the wagon stops suddenly, the ball will

• A. stop immediately with the wagon

• B. roll forward in the wagon and fall off

• C. both the wagon and the ball will crash

• D. stay exactly where it is

Which of the following surfaces has more friction?

• wet floor

• skating rink

• bumpy road

• well-polished floor

Mr Patino is driving his Lamborghini and he is about to get on the freeway. What does he need to do to move into to the freeway?

• He should slow down to get on the freeway.

• He should accelerate to get on the freeway.

• He cannot get on the freeway because of friction.

• He will use gravity to get on the freeway.

During an experiment, students applied an equal force to push each box pictured below. If they pushed all of the boxes on the same surface for same amount of time, which box will MOST LIKELY move the greatest distance?

• F. 30 kg

• G. 15 kg

• H. 150 kg

• J. 40 kg

The headphones change this energy into what other kind of energy?

• A

• B

• C

• D

The toy car and ramp seen above might be used to answer which testable question?

• A. What material is the ramp made of?

• B. Which toy car looks the best?

• C What effect does gravity have on a toy car?

• D. What metal makes the best toy cars?

Which of these objects uses the same source of energy as the headphones?

• A

• B

• C

• D