CIE iGCSE Co-Ordinated Science P1.6.1 Energy Exam Style Questions Paper 1
Question
Which two quantities are used to calculate power?
A. distance moved and time taken
B. speed and distance moved
C. work done and speed
D. work done and time taken
▶️Answer/Explanation
Answer: D
Explanation: Power is calculated as work done divided by time taken (P = W/t).
Question
The diagram shows a man diving into water.
Which form of energy is increasing as he accelerates downwards through the air?
A. chemical
B. elastic potential (strain)
C. gravitational potential
D. kinetic
▶️Answer/Explanation
Answer: D
Explanation: As the man accelerates downwards, his speed increases, leading to an increase in kinetic energy.
Question
Which type of energy does an object have due to its motion?
A. elastic potential
B. gravitational potential
C. kinetic
D. nuclear
▶️Answer/Explanation
Answer: C. kinetic
Explanation: Kinetic energy is the energy an object possesses due to its motion. Elastic potential, gravitational potential, and nuclear energy are forms of stored energy, not energy due to motion.
Question
A stone falls from a bench. Which row describes how the gravitational potential energy and the kinetic energy of the stone change as it falls?
| gravitational potential energy | kinetic energy | |
|---|---|---|
| A | decreases | increases |
| B | decreases | stays the same |
| C | increases | decreases |
| D | increases | stays the same |
▶️Answer/Explanation
Answer: A) decreases | increases
Explanation: As the stone falls, its gravitational potential energy decreases while its kinetic energy increases due to the conversion of potential energy into kinetic energy.