Question

Help me, its science

1.) Which form of energy is common among the following objects: lighted bulb, hot soup, burning firewood, and electric stove?
a. heat
b. light
c. electric
d. chemical

2.) Which of the following refers to the capacity to do work?
a. energy
b. power
c. momentum
d. velocity

3.) Which of the following objects possesses kinetic energy?
a. a book on top of the table
b. a car in a parking lot
c. a bouncing ball
d. a hammer raised at a certain height

4.) What are the energy changes that take place in a television?
a. electrical → potential → kinetic
b. kinetic → electrical → potential
c. electrical → light → sound
d. potential → electrical → kinetic

5.) What are the energy changes that take place in a cell phone charger?
a. electrical → chemical → light
b. chemical → potential → electrical
c. heat → chemical → electrical
d. chemical → electrical → light

Answer 1

1. Heat energy

2. Energy

3. A bouncing ball

4. Electrical - light - sound

5. Electrical- chemical - light