PencilGo

Forces & Engineering

Grade 2 · On-level practice · 8 questions · Version PG-108WAUN-1K25

Free printable
1.Explain “Newton's third law” in your own words.
2.Explain “kinetic energy” in your own words.
3.Explain “prototype” in your own words.
4.Explain “constraint” in your own words.
5.Explain “magnet” in your own words.
6.Explain “balanced forces” in your own words.
7.Explain “unbalanced forces” in your own words.
8.Explain “electric circuit” in your own words.

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 12
  1. Explain “Newton's third law” in your own words.forces occur in equal and opposite pairs
  2. Explain “kinetic energy” in your own words.energy an object has because of motion
  3. Explain “prototype” in your own words.an early model used to test a design
  4. Explain “constraint” in your own words.a limit a design must satisfy
  5. Explain “magnet” in your own words.an object producing a field that attracts or repels certain materials
  6. Explain “balanced forces” in your own words.forces with zero net effect on motion
  7. Explain “unbalanced forces” in your own words.forces producing a nonzero net force
  8. Explain “electric circuit” in your own words.a complete path through which electric charge can move

Worked example

Identify forces, constraints, and evidence from a test before revising a design.

Common mistake

Changing several variables at once and losing a fair comparison.

Helpful hint

Change one feature and measure the result.