Force and Motion Review

After throwing a basketball through the net, Anna observed the ball as it hit the ground. Which is most likely responsible for the ball hitting the ground?

• friction

• gravity

• mass

• speed

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Chris climbs onto a skateboard ramp halfway between the top and the bottom of the ramp. Because gravity acts on Chris, which is most likely to happen?

• He won't move.

• He will roll up the ramp.

• He will roll down the ramp.

• He will float above the ramp.

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The chart shows four identical wagons loaded with different amounts of bricks. If the same amount of effort is applied to all four identical wagons, why would Wagon W move farthest?

• It has the least amount of mass, affecting its motion.

• It has the least amount of speed, affecting its motion.

• It has the greatest amount of gravity, affecting its motion.

• It has the greatest amount of friction, affecting its motion.

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Ana is pushing a wheelbarrow of rocks. She stops and unloads half of the rocks. How will this effect the force needed to move the wheelbarrow?

• Gravity is increased, making the wheelbarrow easier to move.

• Gravity is decreased, making the wheelbarrow harder to move.

• Mass is decreased, making the wheelbarrow easier to move.

• Friction is increased, making the wheelbarrow harder to move.

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Miguel sorted objects he wanted to recycle into two similar boxes. He filled Box 1 with empty bottles and Box 2 with newspapers. He pushed both boxes across the floor. Miguel used more force to push Box 2 than Box 1. Which is the MOST likely reason Miguel used more force when he pushed Box 2?

• Box 2 was taller than Box 1.

• Box 2 was heavier than Box 1.

• Box 2 had stronger sides than Box 1.

• Box 2 contained more objects than Box 1.

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How fast was a train moving if it traveled 100 meters in 5 seconds?

• 105 meters

• 20 meters

• 20 meters per second

• 5 meters per second

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A 30 gram ball rolls along a flat surface at a constant speed in the same direction over 80 meters in 20 seconds. Which is the speed of the ball?

• 100 meters per second

• 4 meters per second

• 4 seconds

• 100 meters

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A car is traveling at a speed of 60 miles per hour. If the car travels for one hour and 30 minutes, how far did the car travel?

• 90 miles

• 90 seconds

• 90 miles per hour

• 60 miles per hour

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Greg’s family is planning a trip, and want to choose the method of transportation that travels with the most speed. Which should Greg’s family choose?

• a bus traveling 60 km every two hours

• a car traveling 60 km every four hours

• a train traveling 120 km every four hours

• a plane traveling 120 km every two hours

Students observed a turtle in the schoolyard. They measured the distance that the turtle traveled in 30 minutes. If the turtle walked 40 meters in that time, what was its average speed?

• 0.75 m/h

• 20 m/s

• 80 m/h

• 1,200 m/h