
Force and Fan Carts Quiz
Quiz by Romano, Ellen
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12 questions
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- Q1If a fan cart with the fan set to High has a speed of 31.0 cm per second after 5 seconds, what could the cart's speed be at the same time if the fan speed is set to Medium?31.0 cm per second5.0 cm per second40.0 cm per second10.9 cm per second30s
- Q2What is necessary for a moving object to change its speed?for a moving object to keep moving at the same speed and directionto maintain the same speedfor a moving object to change its speedto remain at rest30s
- Q3If Rebecca measures the speed of her fan cart and it reaches 20 cm per second at 10 seconds, what speed will it reach at 12 seconds?18 cm per second22 cm per second30 cm per second24 cm per second30s
- Q4What happens to a fan cart moving on a frictionless surface when the fan force is changed from High to Low?The cart will stopThe cart will move backwardThe cart will continue to speed up, but not as quickly as before.The cart will slow down30s
- Q5What could explain a speed-versus-time bar graph showing no change in speed after the 8-second mark for a fan cart?The cart was pushed from behindThe track was frictionless, and the fan was changed from High to Off after 8 seconds.The fan speed was increasedThere was a constant external force30s
- Q6What occurs to the fan cart if it is placed on a surface with high friction?The cart will speed up indefinitelyThe cart will move faster than on a frictionless surfaceThe cart will not move at allThe cart will slow down more quickly than on a frictionless surface30s
- Q7What is the role of friction in the fan cart experiment?Friction speeds the cart upFriction changes the direction of the cartFriction has no effectFriction slows the cart down30s
- Q8What does the bar graph indicate if the speed remains constant after 8 seconds?The surface was made of woodThe cart never movedThe track was frictionless, and the fan was changed from High to Off after 8 secondsThe fan was always off30s
- Q9What is needed for a moving object to change its speed?Force is needed for a moving object to change its speedForce is only needed for motionless objects to start movingForce is needed for a moving object to keep moving at the same speed and directionForce is required to maintain constant speed30s
- Q10If Rebecca's fan cart reaches a speed of 20 cm per second at 10 seconds, what speed will it be at 12 seconds?20 cm per second22 cm per second26 cm per second24 cm per second30s
- Q11What happens when the fan force is changed from High to Low on a frictionless surface?The cart will move backwardThe cart will continue to speed up, but not as quickly as beforeThe cart will slow downThe cart will stop immediately30s
- Q12What is force?A push or pull on an objectThe energy stored in an objectThe amount of matter in an objectThe temperature of an object30s