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Testing a Push Fairly is a free printable Grade 3 science worksheet on planning an investigation into how forces change motion, aligned to NGSS performance expectation 3-PS2-1. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 15 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Testing a Push Fairly

3-PS2-1

NameDate

Circle the best answer.

1.You want to know whether carpet slows a toy car more than tile. What must stay the same?
  • A.The car, the ramp and the height it starts from
  • B.The floor it rolls onto
  • C.Nothing at all
2.You want to know if a bigger push makes a ball roll further. How should you push?
  • A.The same push every time
  • B.A small push, then a big push, on the same ball and floor
  • C.A big push on a ball and a small push on a box
3.Two equal pushes from opposite sides leave a box still. What should you write down?
  • A.The box was too heavy
  • B.The forces were balanced, so the box did not move
  • C.There were no forces
4.What makes a forces test unfair?
  • A.Changing the push and the floor at the same time
  • B.Writing down the results
  • C.Repeating the test
5.You want to test whether two pushes move a box further than one. What do you change?
  • A.The box
  • B.The number of pushes
  • C.The floor
6.What should you measure to see how much each floor slowed the car?
  • A.How far the car rolls before it stops
  • B.The color of the car
  • C.How loud the car is
7.A car slows and stops on carpet. Which force made it stop?
  • A.Magnetism
  • B.Friction from the carpet, pushing against its motion
  • C.No force, it just ran out
8.Why roll the car three times on each floor?
  • A.Because three is a lucky number
  • B.One roll might be unusual, so the results are checked
  • C.To wear out the car

LessonPrint · 3-PS2-1 · Set 15 · free to copy for classroom use

Answer key — Testing a Push Fairly

Set 15. Prints on its own sheet.

  1. 1.The car, the ramp and the height it starts from
  2. 2.A small push, then a big push, on the same ball and floor
  3. 3.The forces were balanced, so the box did not move
  4. 4.Changing the push and the floor at the same time
  5. 5.The number of pushes
  6. 6.How far the car rolls before it stops
  7. 7.Friction from the carpet, pushing against its motion
  8. 8.One roll might be unusual, so the results are checked

Last reviewed 2026-09-05. Aligned to 3-PS2-1 of the Next Generation Science Standards.