A 1.5 kg object is lifted 3.0 m. What is the gravitational potential energy gained?

Get ready for the NCEA Level 1 Energy Test. Utilize flashcards and multiple choice questions with clear explanations and hints. Prepare for success!

Multiple Choice

A 1.5 kg object is lifted 3.0 m. What is the gravitational potential energy gained?

When you lift an object in gravity, the energy gained is found by multiplying its mass by the gravitational acceleration and the height you raise it: m g h. Here, m = 1.5 kg, g ≈ 9.8 m/s^2, and h = 3.0 m. So the gain is 1.5 × 9.8 × 3.0 = 44.1 joules. This is the amount of work done against gravity to raise the object by 3.0 m. The result is 44.1 J, matching the correct choice.

When you lift an object in gravity, the energy gained is found by multiplying its mass by the gravitational acceleration and the height you raise it: m g h. Here, m = 1.5 kg, g ≈ 9.8 m/s^2, and h = 3.0 m. So the gain is 1.5 × 9.8 × 3.0 = 44.1 joules. This is the amount of work done against gravity to raise the object by 3.0 m. The result is 44.1 J, matching the correct choice.

More practice questions