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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for potential energy?
💡 Hint: Remember what each letter stands for.
Question 2
Easy
If a ball is lifted 2 m and has a mass of 1 kg, how much potential energy does it have?
💡 Hint: Use the formula for PE, plugging in the values given.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the formula for calculating potential energy?
- PE = mv
- PE = mgh
- PE = mg
💡 Hint: Think of what we discussed about height and mass.
Question 2
True or False: Potential energy can be converted entirely into kinetic energy.
- True
- False
💡 Hint: Recall the roller coaster example.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 10 kg rock is lifted to a height of 20 m on a hill. Calculate its potential energy. Next, what would its potential energy be if raised to only 10 m?
💡 Hint: Use the formula and ensure to change the height value accordingly.
Question 2
A car is lifted to a height of 1.5 m and weighs 1200 kg. Calculate its potential energy, and if it rolls down, what is the energy converted to kinetic energy?
💡 Hint: Remember, when kinetic energy is gained, potential energy is lost.
Challenge and get performance evaluation