5th Grade Science Unit 3 Assessment: Force and Motion

Some students were investigating which surfaces would allow a ball to roll the farthest. Which of the following would NOT be essential in their investigation?

• 3 types of surfaces

• a calculator and a stopwatch

• a meter stick

• ALL of these would be essential

Answer explanation

You do not need a calculator or a stopwatch to test how far a ball would roll on different surfaces.

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Using a cup of 50 paper clips, which type of magnets will attract the most paper clips?

What materials would you need to test this?

• a tape measure, paper clips and a cup

• paper clips, different types of magnets, and a cup

• paper clips, pennies, and a cup

• different types of magnets, sand paper and a cup

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Letter X is showing _____energy.

Potential or Kinetic?

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A student designs an experiment to test the force of a spring using a spring launcher and four spheres with the same diameter but with different masses.

What other piece of equipment would be most useful for this experiment?

• a graduated cylinder

• a beaker

• a stop watch

• a meter stick

Answer explanation

A meterstick to measure the height each sphere reaches after the sphere is launched

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Margaret is studying how the height of a ramp changes the length of time it takes a toy car to roll down the ramp. In her experiment, she uses ramps that are the same length and three identical toy cars. What should Margaret's hypothesis be for this experiment?

The taller the ramp, the ______the car.

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A student is pulling a 50g block up a ramp with a spring scale. Based on what you observe in the diagram, if a student changes the material on the surface of the ramp, describe what he/she would be testing?

• The student will be testing how tall the ramp is.

• The student will be testing the mass of the block.

• The student will be testing the force against friction.

• The student will be testing the color of the block.

Answer explanation

When you change the surface material, you are testing the friction on the ramp.

The student is testing the force against friction.

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This experiment can be used to determine —

• how mass affects the force needed to move objects

• how force affects the mass of two objects

• how the force used to pull a dictionary affects the mass of a box of marbles

• how the mass of a box of marbles affects the mass of a dictionary

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Which of the following questions are BEST for a scientific experiment in a classroom?

Choose two correct answers.

• How much do magnets cost?

• How long is the car ramp?

• Are larger magnets stronger?

• Will a toy car travel further on sand paper or wax paper?

Answer explanation

Be prepared to create your own question on what you can investigate. It must be testable and include a variable that changes.

Watch this video.

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What is a push or pull?

• gravity

• force

• speed

• motion

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Eddie and Connie used two textbooks and a board to make a ramp. They rolled two different balls down the ramp and measured how far the ball traveled after 10 seconds. This was repeated for five trials and the results are in the table below. What parts of the experiment were kept constant?

Choose two correct answers.

• the ball and the height of the ramp

• the height of the ramp and the distance

• the mass and the time

• the height of the ramp and the time

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