Cry of Jelicuon
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Check Your Understanding

Check Your Understanding: Work & Energy

A mix of conceptual and problem-solving items covering the whole module. Try each one yourself first, then reveal the answer to check. Problem items show the final answer only — work the full solution in your science journal.

Festival context —Performers jumping from risers, lifting heavy props, and executing sustained dance sequences during the Cry of Jelicuon reenactment

S9FE-IIIa-20Grade 9 · Quarter 3Work, Power, Potential & Kinetic Energy
1
Conceptual

A performer holds a heavy prop banner perfectly still above their head for 10 seconds. In physics terms, is work being done on the banner? Why?

2
Problem Solving

A stagehand pushes a prop cart 6 m across the stage with a steady 50 N force in the direction of motion. How much work is done?

F = 50 N, d = 6 m

3
Conceptual

As a performer jumps down from a riser, what happens to their potential energy and kinetic energy during the fall?

4
Problem Solving

A 3 kg prop is lifted onto a storage shelf 2 m high. What is its gravitational potential energy there? (g = 9.8 m/s²)

m = 3 kg, h = 2 m, g = 9.8 m/s²

5
Problem Solving

Two performers each do 600 J of work climbing the riser. Ana takes 3 s and Ben takes 6 s. Who delivers more power, and how much?

W = 600 J; t = 3 s vs 6 s

Try each item on your own first — reveal the answer only to check your work.

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