The toy car and ramp seen above might be used to answer which testable question?

• A. What material is the ramp made of?

• B. Which toy car looks the best?

• C What effect does gravity have on a toy car?

• D. What metal makes the best toy cars?

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2. By changing the surface over which the car rolls from sandpaper to wax paper, you might be able to test the effect of what force?

• A. Magnetism

• B. Wind

• C. Wind

• D. Friction

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3. Which two tools below would be most useful in testing how the mass of an object can affect the distance it moves with a push?

• A. Spring scale and hot plate

• B. Balance and meter stick

• C. Graduated Cylinder and beaker

• D. Magnet and thermometer

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How might you test the strength of several different types of magnets?

• F. Submerge each magnet in water

• F. Submerge each magnet in acid

• H. Find the mass of each magnet

• J. Measure the attraction force of each magnet

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5. An experiment is conducted to measure the amount of force required to push a square cardboard box from one side of the room to the other side. What variable is likely to lessen the force required?

• A. Adding several heavy weights to the box

• B. Tipping the box onto its side

• C. Adding another box on top

• D. Placing the box onto a wheeled cart

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6. Some students were investigating if the height that a ball was dropped would affect its bounce. The ball was dropped at 60 cm and at 80 cm. What statement is true of the results for each of the heights that the balls were dropped?

• F. There was no difference in the results.

• G. The ball dropped from 60 cm bounced 20 cm higher than

  the ball dropped from 80 cm.

• H. The ball dropped from 80 cm bounced higher than the ball dropped from 60 cm.

• J. The ball dropped from 60 cm bounced higher than the ball dropped from 80 cm.

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7. A ball is sitting loose in the moving wagon pictured below. If the wagon stops suddenly, the ball will

• A. stop immediately with the wagon

• B. roll forward in the wagon and fall off

• C. both the wagon and the ball will crash

• D. stay exactly where it is

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During an experiment, students applied an equal force to push each box pictured below. If they pushed all of the boxes on the same surface for same amount of time, which box will MOST LIKELY move the greatest distance?

• F. 30 kg

• G. 15 kg

• H. 150 kg

• J. 40 kg

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9. Some students were testing the effects of force on the motion of a water bottle. They set up the experiment picture above and rolled the full water bottle down both ramps. What question were the students most likely trying to answer?

• A. How does mass affect the distance a full water bottle will roll?

• B. How does friction affect the distance a full water bottle will roll?

• C. How does the size of the water bottle affect the distance it rolls?

• D. How does ramp height affect the distance a full water bottle will roll?

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10. A student investigating the effects of forces, measures the distance a ball can be pushed by air from a small fan. What is the variable (change) in this investigation?

• F. The mass of the balls being pushed by air.

• G. The length of the surface on which the balls roll.

• H. The amount of wind pushing the balls.

• J. The type of surface the balls are rolling on.

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