Grade 4 - Science - Level 1

What is Acceleration?

• A change in velocity over time.

• A change in velocity only.

• No change in velocity.

what is Force?

• A push only.

• A push or pull.

• A pull only.

What is Friction?

• A force between surfaces that slows objects or

  stops them from moving.

• A force between surfaces that speed objects or

  stops them from moving.

• A force between surfaces that slows objects or

  speeds them up.

What is Inertia?

• The tendency of an object in motion

  to stay in motion or of an object at

  rest to stay at move.

• The tendency of an object in motion

  to stay in motion or of an object at

  rest to stay at rest.

• The tendency of an object in rest

  to stay in motion or of an object at

  motion to stay at rest.

______ is a A change in an object’s Position

• Motion

• Force

• Pull

_______ is a change in an object’s Position.

• Motion

• Friction

• Force

______ is how fast an object’s position changes over

time at any given moment.

• Speed

• Motion

• Friction

What is Velocity?

• The speed and direction of an object

• The speed of an object.

• The direction of an object.

• None of above

If a race car traveled a distance of 500 kilometers in 2

hours, what was the car’s average speed?

• 250 km/h

• 550 km/h

• 150 km/h

• 350 km/h

If the drag forces are increased, then an object

will fall.

• A. More slowly.

• Rapidly and then slow down.

• Roughly at the same speed

• Faster