Energy Equations Practice

This quiz uses the equations for kinetic energy, gravitational potential energy, and spring potential energy.

$E_k =\cfrac{1}{2}mv^2$

$E_g = mgh$

$E_s = \cfrac{1}{2}kx^2$

(Use g = 9.8 m/s² as the acceleration due to gravity to get your answers to match the quiz answers)

1. A 1800 kg car is going 19.1 m/s. How much kinetic energy does it have?
Round your answer to the nearest whole number.

Question 1 of 6

2. A car going 33.3 m/s has 83000 J of kinetic energy. What is the mass of the car in kg?
Round your answer to the nearest whole number.

Question 2 of 6

3. An object gains 1513023.5 J of potential energy as it is raised 378.5 m. What is the mass of the object?
Round your answer to the nearest 0.1 kg.

Question 3 of 6

4. A 405.6 kg object gains 1320057.6 J of potential energy as it is raised upward. How many meters was the object raised?
Round your answer to the nearest 0.1 m.

Question 4 of 6

5. An object gains 80636.9 J of potential energy as it is raised 15.9 m. What is the mass of the object?
Round your answer to the nearest 0.1 kg.

Question 5 of 6

6. An object gains 681143.1 J of potential energy as it is raised 241.0 m. What is the mass of the object?
Round your answer to the nearest 0.1 kg.

Question 6 of 6