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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 ChoiceThe amount of friction depends on the weight of the objects pressing together.TrueFalse
- 5. Multiple ChoiceWhat does friction produce?lightsoundheatgravity
- 6. Multiple ChoiceWhat is the unit called that measures force?weightmeterNewtonkilogram
- 7. Multiple Choice
How 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 - 8. 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
- 9. 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
- Answer choicesTagsAnswer choicesTags