Energy, Power, and Energy Efficiency (VCE SSCE Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is energy defined as?
What is energy defined as?
The measurable property giving ability to do work
Which statement about energy is correct?
Which statement about energy is correct?
Energy cannot be created or destroyed
What is the gravitational potential energy of a 50 kg object raised 10 m? (Use N kg)
What is the gravitational potential energy of a 50 kg object raised 10 m? (Use N kg)
J
What is the kinetic energy of a 2 kg object moving at 10 m s?
What is the kinetic energy of a 2 kg object moving at 10 m s?
J
If velocity doubles, by what factor does kinetic energy increase?
If velocity doubles, by what factor does kinetic energy increase?
4
What is energy transformation?
What is energy transformation?
Energy changing form within a system
If 600 J of work is done in 30 s, what is the power?
If 600 J of work is done in 30 s, what is the power?
W
A device uses 500 J with 150 J useful output. What is its efficiency?
A device uses 500 J with 150 J useful output. What is its efficiency?
How is kinetic energy related to mass?
How is kinetic energy related to mass?
Directly proportional:
At half the original height on a roller coaster, how is energy split?
At half the original height on a roller coaster, how is energy split?
Half gravitational PE, half kinetic