Question

Let us answer
A. Tick () the correct answer.
We are able to stay on the ground because of
gravitational force.
b. elastic fc
c. buoyant force.
d. frictiona
2. A screwjack used to lift a car is a
a. first-class lever.
b. pulley.
c. second-class lever.
d. screw.
3. The most readily available source of energy is
a. wind energy
b. solar
c. geothermal energy.
d. water
4. The upward push of water on a floating object is call
buoyant force b, yolume.
c. dens​

Answer 1

• gravitational force because because in this one universal gravitational force say that that every planet means everybody on The Earth is a attracked by the earth with the same force for the we stand on the earth because of the gravitational force.
• screw in this question I am not confident..
• wind energy
• buoyant force which is also know as buauncy ..

Answer 2

Answer:

1. Elastic force

2. First class lever

3. Solar energy

4. Buoyant force

Hope it help you.