3rd-Qtr-Science-Quiz-W6

Forces can be:

• Push and pull

• Pushes only

• Pulls only

2. A book falls off the desk. What moves the book towards the floor?

• friction

• gravity

• motion

3. A push or a pull on an object is:

• motion

• acceleration

• force

4. Forces can change the speed, direction or shape of an object

• True

• False

• No Answer

4.To reduce friction, one could.

• remove wheels to reduce the downward pressure in trolleys

• place extra weight on the object that is moving

• use a lubricant such as oil, water, grease

A force can____________.

• make an object move

• make a moving object stop moving

• all of the above

What does the force of gravity do to objects?

• it pushes them apart

• it pulls them to the center of earth

• It makes them float

How does gravity on Earth compare to gravity on the moon?

• There is more gravity on Earth

• There is more gravity on the moon

• It is the same

Objects that have more mass also have more gravity.

• true

• false

What does the word mass mean?

• how far an object can be thrown

• The amount of matter in an object

• how high a person can jump