Potential EnergyPractice Questions & MCQs
Practice Potential Energy questions from Work and Energy (Class 9 Science) - important MCQs with answers and step-by-step solutions. Solve the sample questions below, then practice the full set free on the RankByte app.
Potential EnergyQuiz - Solve & Score
Q1. A crane swings a steel girder of mass 8 kg up onto a rooftop 3 m above the yard. With g = 10 m/s^2, what potential energy is now stored in it?
- A.24 J
- B.80 J
- C.38 J
- D.240 J
Answer: D. 240 J
Gravitational PE = m*g*h = 8 * 10 * 3 = 240 J.
Q2. A warehouse hand sets a grain sack of mass 12 kg on a shelf 4 m off the floor. Using g = 10 m/s^2, what is its gain in potential energy?
- A.120 J
- B.52 J
- C.48 J
- D.480 J
Answer: D. 480 J
Gravitational PE = m*g*h = 12 * 10 * 4 = 480 J.
Q3. A librarian slides a pile of books of mass 3 kg onto a rack 5 m high. If g is taken as 10 m/s^2, how much potential energy has it acquired at the top?
- A.53 J
- B.15 J
- C.150 J
- D.30 J
Answer: C. 150 J
Gravitational PE = m*g*h = 3 * 10 * 5 = 150 J.
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Where can I practise Potential Energy questions for Class 9 Science?
RankByte has Potential Energy practice questions and MCQs from Work and Energy (Class 9 Science), each with the correct answer and a step-by-step solution - free to start.
Are these Potential Energy questions important for the exam?
Yes. These Potential Energy important questions follow the Science exam pattern (CBSE Boards, plus JEE and NEET foundation), so they help with both school and competitive prep.
Do the Potential Energy questions come with answers and solutions?
Every Potential Energy question on RankByte comes with the correct answer and a full step-by-step solution, so you learn the concept instead of just guessing.