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- 1. Multiple ChoiceHow does friction affect speed?more friction decreases speedmore friction increases speedless friction decreases speedless friction doesn't affect speed
- 2. Multiple ChoiceFriction is a force that acts in an ___________ direction of movement.similaroppositeparallelwest
- 3. Multiple ChoiceA type of friction that occurs when air pushes against a moving object causing it to decelerate.surface areaair resistancevelocitygravity
- 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 ChoiceWhich of the following is an example of friction that is harmful?Pencil marking on paperEngine parts wearing outsand placed on ice in the winterUsing an eraser to erase marks
- 8. 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
- 9. Multiple ChoiceWhat does friction produce?lightsoundheatgravity
- 10. Multiple ChoiceWhat is the unit called that measures force?weightmeterNewtonkilogram
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