6th Grade Science Reviewer
Part 11 Force and Motion
Direction: Choose the letter with the best answer. Write your answer on
your answer sheet.
1. It is a push or pull upon an object resulting from objects interacting with one another.
- machine
- work
- force *
- effort
2. Which is not one of the effects of force on objects?
- Force can make
object travel in time. *
- Force can stop a
moving object.
- Force can change
the size and shape of an object.
- Force can change
the speed of a moving object.
3. It is a force that pulls objects towards one another.
- electric force
- gravitational
force *
- magnetic force
- frictional force
4. What force is generated by two surfaces that contact and slide against each other?
- gravitational
force
- nuclear force
- magnetic force
- frictional force
*
5. The _________ makes all objects fall toward the center of Earth.
- friction
- sun
- electricity
- gravity *
6. The following are kinds of friction except ___________.
- static friction
- magnetic
friction *
- rolling friction
- sliding friction
7. The friction between moving objects and a liquid or between an object moving in the air is
called ____________.
- rolling friction
- fluid friction *
- sliding friction
- static friction
8. The kind of friction known as dry friction which occurs when two objects rub against each other.
- static friction
- sliding friction
*
- rolling friction
- fluid friction
9. Which has the greatest friction?
- smooth floor
- rough floor *
- wet floor
- tiled floor
10. What force do the brakes on a car produce to stop moving?
- weight
- gravity
- magnet
- friction *
Sir
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