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- 1. Multiple ChoiceWhat does friction produce?lightsoundheatgravity
- 2. Multiple ChoiceWhat direction does friction act relative to motion?in the same directionin the opposite directionneed more informationdepends on the force
- 3. Multiple ChoiceHow does friction affect speed?more friction decreases speedmore friction increases speedless friction decreases speedless friction doesn't affect speed
- 4. Multiple ChoiceWhich of the following is an example of friction that is helpful?Brakes used on a bikeTires from a car on the roadTread on the bottom of your shoesAll are examples that are helpful
- 5. Multiple ChoiceThe amount of friction depends on the weight of the objects pressing together.TrueFalse
- 6. Multiple Choice
What type of friction is not moving?staticslidingfluidrolling - 7. Multiple ChoiceHow does friction affect speed?more friction decreases speedmore friction increases speedless friction decreases speed
- 8. Multiple ChoiceThe rougher the surface, the faster an object will travel over the surface.TrueFalse
- 9. Multiple ChoiceWhen most objects with smooth surfaces rub, there is less friction.TrueFalse
- 10. Multiple Choice
Which of the following answers is the most scientific answer for the question:
What is friction?
The random force between two solids, liquids, or gases.
The contact force between two solids, liquids, or gases that slide past one another.
The thing that creates static electricity
A force that is random
- 11. Multiple ChoiceA puck slides along an icy surface. What makes it slow down?It runs out of pushIt rubs against the iceIt runs out of electricity
- 12. Multiple ChoiceOn which surface will a toy car travel the furthest?CarpetPolished WoodIce
- 13. Multiple ChoiceRougher surfaces have ...greater frictionless frictionthe same level of friction
- 14. Multiple Choice
Which of the following statements is false?
Friction can only slow things down
Friction is never useful
Friction can stop things from moving
- 15. 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 - 16. Multiple Choice
What is acceleration?
transfer of energy to an object
going faster
a change in velocity (speed, direction, or both)
an object remaining in motion or at rest until something changes it
- 17. Multiple ChoiceWhat are 2 factors that determine the amount of friction between 2 objects?Force and roughness between surfaceshills and valleys and how smooth or rough the surface isAmount of force and amount of surface the comes in contactThe force and the weight exerted on the surfaces
- 18. Multiple ChoiceHow can friction be reduced?reduce the force acting between the 2 surfacesreduce the roughness of the 2 surfaces coming in contactuse wax, grease or oilall of the above are ways of reducing friction
- 19. Multiple ChoiceWhich would NOT be a way of reducing friction?making the surfaces smootherusing lubricants such as waxes, oils, or greasechanging from sliding friction to rolling friction using ball bearingsUsing kitty litter on snow and ice to help your car gain traction
- 20. Multiple ChoiceWhich of the following is an example of rolling kinetic friction?box sliding across the floorbike rolling along the roadcar skidding to a stopsoccer player making a slide tackle
- 21. Fill in the Blank
What is the study of Friction called? (check your spelling)
- Answer choicesTagsAnswer choicesTags