Force and Motion Part 1

The push or pull that gives energy to an object is called –

• force

• fall

• power

• energy

The force an object exerts on other objects is called –

• inertia

• gravity

• volume

• fall

An example of the force of gravity is –

• a rocket flying through space

• a ball falling to the ground after it has been thrown

• a cloud moving across the sky

• the Sun rising

Jason threw a football. It follows the path shown by the arrows.

Arrow Y represents the –

• initial force of Fred’s throw on the ball

• effect of wind on the direction of the ball

• effect of gravity on the ball

• the inertia of the ball

Ted threw a paper airplane. While the airplane was in the air a force of wind acted on it as shown.

If the force of the wind is stronger than the force moving the plane then the plane will –

• increase in speed

• increase in height

• be pushed downward

• be pulled backward

The model shows a toy car and the direction it is traveling. Arrow T represents the direction of a force applied to the moving car.

After the force (Arrow T) acts on the car, the car MOST likely will NOT –

• change direction

• go faster

• slow down

• stop

Frances was working on an experiment for science class. She dropped 4 steel balls of different weights from the same height. She noticed that the balls all reached the ground at the same time. Frances is probably doing an experiment on the –

• force of wind

• effect of gravity

• states of matter

• quality of materials

An object at rest will stay at rest until –

• a force acts on it

• its mass changes

• its weight changes

• gravity pulls it down

The act of moving is called –

• inertia

• gravity

• work

• motion

When a force moves an object over a distance –

• work has been done to the object

• the object changes mass

• the object becomes smaller

• energy changes the physical properties of the object