Force and Motion

Front

Two girls are pulling on opposite ends of a thick rope with the same force but in opposite directions. What will most likely happen?

Back

Both girls will stay in the same place.

Front

When a bird flies, its wings push air downward. As a result, the air pushes back upward on the bird. Which law of motion most applies to the way the wings of a bird beat?

Back

Every action has an equal and opposite reaction

Front

A student walking quickly while carrying an orange on his lunch tray stops suddenly. The orange will most likely roll off the tray due to

Back

inertia of the orange.

Front

Alesia's bicycle ride: During which time period is Alesia moving fastest? Options: 0–1 hours, 3–4 hours, 4–5 hours, 6–7 hours

Back

0–1 hours

Front

The propelling of the balloon from the release of the air is an example of which of Newton’s laws? Options: The force of an object is the product of its mass multiplied by its acceleration, A force of attraction exists between any two objects with mass, For every action, there is an equal and opposite reaction, An object in motion tends to stay in motion unless an unbalanced force acts upon it.

Back

For every action, there is an equal and opposite reaction.

Front

The graph shows the motion of four cars moving east. Which car has a constant velocity? Options: 1, 2, 3, 4

Back

3

Front

A student reads his paper on friction to the class. Which statement should he include in his paper if he wants to present accurate information? Options: Friction increases mechanical advantage, Friction opposes the direction of movement, Friction makes movement of an object easier, Friction reduces the amount of work used to move an object.

Back

Friction opposes the direction of movement.

Front

Kilometers per hour (kph) is a unit that describes which of the following? Options: velocity, direction, position, speed

Back

speed

Front

What is speed?

Back

Speed is the distance something travels in a set amount of time.

Front

When an object's distance from another object is changing, the object is...

Back

in motion