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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 3 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.No force, it just ran out
  • B.Friction from the carpet, pushing against its motion
  • C.Magnetism
2.What makes a forces test unfair?
  • A.Repeating the test
  • B.Changing the push and the floor at the same time
  • C.Writing down the results
3.You want to test whether two pushes move a box further than one. What do you change?
  • A.The box
  • B.The floor
  • C.The number of pushes
4.Your results show the car rolled 90 cm on tile and 30 cm on carpet. What can you conclude?
  • A.The carpet slowed the car more than the tile
  • B.The tile slowed the car more
  • C.The floors made no difference
5.In the carpet and tile test, what is the one thing you change?
  • A.The height of the ramp
  • B.The floor the car rolls onto
  • C.The car
6.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
7.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
8.You test pushing a box from one side, then from both sides at once. What are you testing?
  • A.How the direction of the forces changes the motion
  • B.How heavy the box is
  • C.What color works best

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

Answer key — Testing a Push Fairly

Set 3. Prints on its own sheet.

  1. 1.Friction from the carpet, pushing against its motion
  2. 2.Changing the push and the floor at the same time
  3. 3.The number of pushes
  4. 4.The carpet slowed the car more than the tile
  5. 5.The floor the car rolls onto
  6. 6.The car, the ramp and the height it starts from
  7. 7.One roll might be unusual, so the results are checked
  8. 8.How the direction of the forces changes the motion

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