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- 1. Multiple Choice
The amount of friction depends on the weight of the objects
True
False
- 2. Multiple ChoiceRougher surfaces have ...greater frictionless frictionthe same level of friction
- 3. Multiple ChoiceHow does friction affect speed?more friction decreases speedmore friction increases speedless friction decreases speed
- 4. Multiple ChoiceWhen most objects with smooth surfaces rub, there is less friction.TrueFalse
- 5. Multiple ChoiceFriction is a force that acts in an ___________ direction of movement.similaroppositeparallelwest
- 6. Multiple ChoiceWhat does friction produce?
color
soundheat - 7. Multiple ChoiceOn which surface will a toy car travel the furthest?CarpetPolished WoodIce
- 8. Multiple Choice
Which of these statements is FALSE?
Friction can slow things down
Friction is never useful
Friction can stop things from moving
- 9. Multiple ChoiceMovers slide a box down the ramp of a truck.
What helps slow the box as it slides to the bottom of the ramp?frictiongravityinertiamagnetism - 10. Multiple Choice
The motion of an object will change when an unbalanced force is applied to it
true
false
- 11. Multiple Choice
The diagram represents a person using a spring scale to pull a wooden block up a ramp.The plastic straws were placed under the wooden block to
decrease the mass of the block
decrease the amount of friction
increase the gravitational pull of the block
- 12. Multiple Choice
Identify the force between the wheels of the cart and the ground surface that opposes forward motion of the cart
Momentum
Friction
Magnetic
Force
- 13. Multiple Choice
Which force will decrease if the surface of the
ramp is made smoother?
gravity
magnetism
friction
electricity
- 14. Multiple Choice
This type of force resist motion between two surfaces that are in contact with each other
contact
gravity
friction
- 15. Multiple ChoiceWhat force ultimately slows the roller coaster to a stop?AppliedNormalFrictionMagnetic
- 16. Multiple ChoiceWhich of these could increase the friction between objects?Thick air moleculesWaterA rough surfaceA smooth surface
- 17. Multiple ChoiceGreater friction causes...An increase in speedA decrease in speedBoth of theseNeither increase or decrease
- 18. Multiple Choice
The wheels and gears of a machine are greased
in order to decrease
potential energy
efficiency
output
friction
- 19. Multiple Choice
Can Friction be an opposing force?
Yes, it slows objects down until they stop
No, it can't stop objects
Sometimes if the object has no mass
- 20. Multiple Choice
The diagram shows a stationary cart on a friction-less surface. Two unequal opposing forces are about to be applied. If the unequal opposing forces are applied to the cart at the same time, what will occur?
The cart will move to the left.
The cart will move to the right.
The cart will alternate between moving left
and right.
The cart will remain stationary.
- 21. Multiple Choice
Which of these explains how friction affects the speed of a moving object?
Friction pushes objects to higher speeds
Friction only affects speed in outer space
Friction can slow down objects until they stop
- Answer choicesTagsAnswer choicesTags