4.1 Energy

Practice questions on Energy

• Compare the environmental impact of using fossil fuels with the environmental impact of us… (4 marks, Compare)
• Explain why renewable energy resources such as solar and wind are not always reliable for … (4 marks, Explain)
• A student uses a hot water bottle to keep warm in bed. The hot water bottle starts at a hi… (4 marks, Explain)
• A cyclist rides along a flat road and then applies the brakes to stop. Explain what happen… (4 marks, Explain)
• A tumble dryer transfers electrical energy to dry clothes. Not all of the electrical energ… (4 marks, Explain)
• A 5 kg block is raised to a height of 2 m and then released. It falls and compresses a spr… (4 marks, Explain)
• A roller coaster car starts from rest at the top of a track and reaches the bottom of the … (4 marks, Describe)
• A archer pulls back the string of a bow, then releases the arrow. Describe the energy chan… (4 marks, Describe)
• A child slides down a playground slide and comes to a stop at the bottom. Describe the ene… (4 marks, Describe)
• A pendulum swings back and forth. Describe the energy changes that take place as the pendu… (4 marks, Describe)
• A 0.5 kg toy car is placed at the top of a 30° incline that is 1.2 m high. It is released … (4 marks, Explain)
• A 2 kg block is attached to a spring with a spring constant of 200 N m⁻¹. The block is pul… (4 marks, Describe)
• A kettle is used to heat water. Describe the energy changes that take place from when the … (4 marks, Describe)
• A ball is dropped from a height and bounces on the floor several times before coming to re… (4 marks, Explain)
• Explain why fossil fuels are still used as the main energy resource for large-scale electr… (4 marks, Explain)
• Describe the disadvantages of using renewable energy resources compared to fossil fuels fo… (4 marks, Describe)
• Explain why nuclear fuel is classed as a non-renewable energy resource but is not a fossil… (4 marks, Explain)