Question

III. Choose the correct option.
1. Which of these forces makes an object come down on the surface of the Earth?
a. Gravity
b. Friction
c. Buoyancy d. Magnetism
2. Which of these is NOT always a disadvantage of friction?
a. It produces heat.
b. It causes wear and tear of machine parts.
c. It makes it hard to slide heavy objects. d. It damages the soles of our shoes.
3. Which of these refers to energy due to the position of an object?
a. Potential energy
b. Kinetic energy
c. Geothermal energy
d. Solar energy
4. What is the energy generated at power stations and supplied to our homes called?
a. Mechanical energy
b. Kinetic energy
d. Electrical energy
c Potential energy​

Answer 1

Answer:

a. Gravity

c. It makes it hard to slide heavy objects

c. Geothermal energy