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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is kinetic energy?
💡 Hint: Think about moving objects.
Question 2
Easy
What type of energy do electric vehicles use?
💡 Hint: Consider what powers the car.
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 type of energy do vehicles primarily convert to kinetic energy?
- Chemical Energy
- Potential Energy
- Nuclear Energy
💡 Hint: Think about what fuels cars run on.
Question 2
True or False: Solar panels can only be used on Earth.
- True
- False
💡 Hint: Consider where sunlight reaches.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A power plant uses coal to generate electricity. If it burns 1000 kg of coal, which produces 3,000 kWh of electrical energy, what is the efficiency of this plant if we assume it started with 3800 kWh of thermal energy from the coal?
💡 Hint: Break the problem down to find useful energy and total energy.
Question 2
If an electric vehicle consumes 20 kWh to travel 100 km, what would be the energy consumption for a trip of 250 km? What can you infer about the efficiency of this vehicle relative to gas vehicles?
💡 Hint: First, figure out the energy needed for each distance.
Challenge and get performance evaluation