Which object requires only mechanical energy to perform its main function?
A
B
C
D
2. Multiple Choice
1.5 minutes
1 pt
The toy oven shown uses a lightbulb to bake small cakes. What types of energy does the toy oven use to bake the cakes?
Light and sound
Electrical and thermal
Thermal and mechanical
Mechanical and electrical
3. Multiple Choice
1.5 minutes
1 pt
A student made a list of activities that involve energy. Which activities on the list are examples of the use of mechanical energy?
Activities 1, 4, and 6
Activities 2, 4, and 5
Activities 1 and 2
Activities 3, 5, and 6
4. Multiple Choice
1.5 minutes
1 pt
A class is learning about states of matter. The teacher shows the students how to set up the investigation shown in the diagram.
Thermal and mechanical
Mechanical, light, and electrical
Electrical and thermal
Light, mechanical, and thermal
5. Multiple Choice
1.5 minutes
1 pt
Water flows through turbines in dams like the one shown below. The flowing water makes the turbines spin. What type of energy is used to make the turbines spin in this type of dam?
Light energy
Thermal energy
Sound energy
Mechanical energy
6. Multiple Choice
1.5 minutes
1 pt
Three different objects that use the same source of energy are shown. What is the energy source for these objects?
Light energy
Mechanical energy
Sound energy
Electrical energy
7. Multiple Choice
1.5 minutes
1 pt
Is this a heat, light, or sound source?
Sound
Heat
Light
8. Multiple Choice
1.5 minutes
1 pt
Is this a heat, light, or sound source?
Sound
Light
Heat
9. Multiple Choice
1.5 minutes
1 pt
What type of energy causes ice cream to melt?
thermal/heat
light
sound
electrical
10. Multiple Choice
1.5 minutes
1 pt
This form of energy means heat.
Mechanic
Light
Thermal
Sound
11. Multiple Choice
1.5 minutes
1 pt
Photosynthesis and solar panels use this form of energy.
Mechanic
Light
Thermal
Sound
12. Multiple Choice
1.5 minutes
1 pt
What type of energy allows you to see the images and texts on your cell phone screen?