Science & Social Studies
Forms & Changes of Energy
Grade 4 · Elementary
Answer every question first, then press Finish to see your score and explanations.
- Question 1 of 20Easy
The largest source of energy for life on Earth is ...
- Question 2 of 20Easy
The energy possessed by a moving object is called ... energy.
- Question 3 of 20Medium
The energy change that happens in an electric iron is ...
- Question 4 of 20Medium
A switched-on electric fan shows a change of ... energy.
- Question 5 of 20Hard
A flashlight lights up while its battery is full. The sequence of energy changes in the flashlight is ...
- Question 6 of 20Easy
The energy produced by a vibrating object is ... energy.
- Question 7 of 20Easy
Which of the following objects has heat energy?
- Question 8 of 20Easy
The energy that lets us see objects around us is ... energy.
- Question 9 of 20Easy
A device that changes electrical energy into light energy is ...
- Question 10 of 20Medium
The motion of fast-flowing water can be used to generate electrical energy at ...
- Question 11 of 20Medium
Energy cannot be created or destroyed, it can only be ...
- Question 12 of 20Medium
When both palms are rubbed together, they feel warm. The energy change that happens is ...
- Question 13 of 20Medium
When cooking rice with an electric rice cooker, the energy change is ...
- Question 14 of 20Medium
A switched-on speaker changes electrical energy into ... energy.
- Question 15 of 20Medium
The energy stored in the food we eat is ... energy.
- Question 16 of 20Hard
In a hydroelectric power plant, falling water spins a turbine, then a generator produces electricity. The sequence of energy changes is ...
- Question 17 of 20Hard
Plants absorb sunlight for photosynthesis. The energy change that happens is ...
- Question 18 of 20Hard
When we run, the food we eat becomes a source of energy. The sequence of energy changes in our body is ...
- Question 19 of 20Hard
Which of the following energy sources can run out if used continuously?
- Question 20 of 20Hard
A toy car uses a battery and can move. The sequence of energy changes is ...