How much gravitational potential energy does a 20 kg object gain when lifted 5 m (g = 10 m/s²)?
Answer and explanation
Correct answer: A. 1000 J
- Step 1: Ep = m g h.
- Step 2: Ep = 20 x 10 x 5 = 1000 J.
Answer
1000 J.
Practise more Physics and Chemistry Calculations.
Free questions with an explanation for every one, and full timed Ontario Secondary School Diploma (OSSD) mock tests.
More Physics and Chemistry Calculations questions
- A stone is dropped from rest (g = 10 m/s², no air resistance). How far has it fallen after 4 s?
- A net force of 10 N acts on a 2 kg block. What is its acceleration?
- A metal block of volume 50 cm³ has a mass of 250 g. What is its density?
- How much gravitational potential energy does a 50 kg object gain when lifted 10 m (g = 10 m/s²)?
- A wave has wavelength 3 m and frequency 50 Hz. What is its speed?
- What is the kinetic energy of a 2 kg object moving at 3 m/s?