Grade 3 · Science · On Level
Free Forces & Engineering worksheet - version 19
Grade 3 forces & engineering practice with original, difficulty-matched questions. This printable version includes 8 grade-appropriate questions and a separate answer sheet.
Forces & Engineering
Grade 3 · On-level practice · 8 questions · Version PG-16O4UC3-DJ0B
1.Explain “kinetic energy” in your own words.
2.Explain “magnet” in your own words.
3.Explain “unbalanced forces” in your own words.
4.Explain “mechanical advantage” in your own words.
5.Explain “electric circuit” in your own words.
6.Explain “Newton's third law” in your own words.
7.Explain “balanced forces” in your own words.
8.Explain “prototype” 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 19
- Explain “kinetic energy” in your own words.energy an object has because of motion
- Explain “magnet” in your own words.an object producing a field that attracts or repels certain materials
- Explain “unbalanced forces” in your own words.forces producing a nonzero net force
- Explain “mechanical advantage” in your own words.the factor by which a machine multiplies force
- Explain “electric circuit” in your own words.a complete path through which electric charge can move
- Explain “Newton's third law” in your own words.forces occur in equal and opposite pairs
- Explain “balanced forces” in your own words.forces with zero net effect on motion
- Explain “prototype” in your own words.an early model used to test a design
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.