Force and Energy 3 DOL

Sarah pushes her toy wagon on a flat sidewalk. What happens to the motion of the wagon when Sarah pushes it harder?

• The wagon slows down.

• The wagon stops.

• The wagon moves faster.

• The wagon moves slower.

Aubrey gives a light push to the ball, causing the ball to move. What will happen if Aubrey pushes the ball again, but with a hard push?

• The ball will stop moving, unlike it did with the light push.

• The ball will move more slowly than it did with the light push.

• The ball will move as quickly as it did with the light push.

• The ball will move more quickly than it did with the light push.

The picture below shows Nathan helping his music teacher move her piano. What causes the piano to move?

• Nathan uses enough force to move the piano by pushing.

• Nathan uses gravity on the piano and floor by pushing.

• The piano uses mechanical energy by pulling on Nathan.

• Gravity uses a downward force by pulling on the piano.

How can you stop a soccer ball that is rolling toward you?

• Apply a pulling force with your foot.

• Apply a pushing force with your foot.

• Apply a pushing force with a magnet.

• Apply a pulling force with a magnet.

Look at this picture of a wagon filled with plants. How can you test how the force you apply changes how the wagon moves? Choose the words, in order, that finish the sentence. Change ___________ and see how ___________ it moves before friction with the ground makes it stop.

• how hard you push; far

• how hard you push; close

• the number of plants; straight

• the number of plants; curved