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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 21 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.A car slows and stops on carpet. Which force made it stop?
  • A.Friction from the carpet, pushing against its motion
  • B.No force, it just ran out
  • C.Magnetism
2.You want to know if a bigger push makes a ball roll further. How should you push?
  • A.A big push on a ball and a small push on a box
  • B.The same push every time
  • C.A small push, then a big push, on the same ball and floor
3.Why roll the car three times on each floor?
  • A.One roll might be unusual, so the results are checked
  • B.To wear out the car
  • C.Because three is a lucky number
4.You test pushing a box from one side, then from both sides at once. What are you testing?
  • A.What color works best
  • B.How heavy the box is
  • C.How the direction of the forces changes the motion
5.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
6.Your results show the car rolled 90 cm on tile and 30 cm on carpet. What can you conclude?
  • A.The floors made no difference
  • B.The tile slowed the car more
  • C.The carpet slowed the car more than the tile
7.You want to know whether carpet slows a toy car more than tile. What must stay the same?
  • A.Nothing at all
  • B.The car, the ramp and the height it starts from
  • C.The floor it rolls onto
8.Before testing, a student says the car will roll furthest on tile. What is that?
  • A.A rule that is always true
  • B.A result
  • C.A prediction to check against the results

LessonPrint · 3-PS2-1 · Set 21 · free to copy for classroom use

Answer key — Testing a Push Fairly

Set 21. Prints on its own sheet.

  1. 1.Friction from the carpet, pushing against its motion
  2. 2.A small push, then a big push, on the same ball and floor
  3. 3.One roll might be unusual, so the results are checked
  4. 4.How the direction of the forces changes the motion
  5. 5.Changing the push and the floor at the same time
  6. 6.The carpet slowed the car more than the tile
  7. 7.The car, the ramp and the height it starts from
  8. 8.A prediction to check against the results

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