Practice - Applications of Energy
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is kinetic energy?
💡 Hint: Think about moving objects.
What type of energy do electric vehicles use?
💡 Hint: Consider what powers the car.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What type of energy do vehicles primarily convert to kinetic energy?
💡 Hint: Think about what fuels cars run on.
True or False: Solar panels can only be used on Earth.
💡 Hint: Consider where sunlight reaches.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
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.
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.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.