Energy and Energy Conversions (Junior Cert Science): 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 ability to do work
What type of energy does water held behind a dam possess?
What type of energy does water held behind a dam possess?
Gravitational potential energy
How does the speed of an object affect its kinetic energy?
How does the speed of an object affect its kinetic energy?
Faster movement = more kinetic energy
Which of these is an example of chemical energy?
Which of these is an example of chemical energy?
Food
What does the principle of conservation of energy state?
What does the principle of conservation of energy state?
Energy can't be created or destroyed
In a Sankey diagram, what does arrow thickness represent?
In a Sankey diagram, what does arrow thickness represent?
Amount of energy
A bulb uses 100 J of electricity and produces 25 J of light. What is its efficiency?
A bulb uses 100 J of electricity and produces 25 J of light. What is its efficiency?
25%
Which of these is a renewable energy source?
Which of these is a renewable energy source?
Wind energy
What does sustainability mean in energy use?
What does sustainability mean in energy use?
Using resources so they don't run out
A force of 30 N pushes a box 10 m. How much work is done?
A force of 30 N pushes a box 10 m. How much work is done?
300 joules