Force, Motion, and Energy

Front

What could be a reasonable conclusion why the box is hard to move? Options: The friction between the box and the driveway, The motion of the box, The way gravity affects the box, The driveway is too smooth

Back

The friction between the box and the driveway

Front

Which of the following would increase the motion of a ball after it is kicked? A rocky surface, A high, grassy surface, A surface slopped uphill, A surface sloped downhill

Back

A surface sloped downhill

Front

A long, round balloon is fastened to the end of a toy rocket. When the balloon is blown up and released, the rocket launches into the air. Which force causes the rocket to launch?

Back

The air released from the balloon

Front

Which would be needed to make a ball at the base of a ramp move up the ramp? Gravity, Inertia, Force, Friction

Back

Force

Front

Which factor is most helpful in lowering an object with the use of a pulley? Options: Friction, because it makes the object move at a constant rate; Gravity, because it allows the object to resist any change; Friction, because it helps speed up the object's movement; Gravity, because it pulls down on the object

Back

Gravity, because it pulls down on the object

Front

Carli is trying to determine if a force can change the direction of an object’s motion. The answer to which question will best help her come to a conclusion? What happens when a ball rolls down a hill? What happens when a moving wagon comes to a stop? What happens when a person pushes on a large brick wall? What happens when a bat is used to hit a ball?

Back

What happens when a bat is used to hit a ball?

Front

When Anna tells her father that her bicycle is hard to pedal, he oils the chain. How does this make her bike easier to ride?

Back

Friction on the bike has decreased.

Front

Friction acts in a direction __________ to the direction of an object's motion

Back

Opposite

Front

Unless an object at rest is acted upon by a force, it stays at rest due to its

Back

Inertia

Front

Jake and Tom want to see who is strongest, so they got a rope and decided to play tug-o-war. Both boys pulled at the rope with all of their strength, but neither of them moved. This is called unbalanced force.

Back

False