Question

Tick the correct option .
a) we are able to stay on the ground because of
gravitational force,buoyant force,elastic force , frictional force.
b) a screw Jack used to lift a car is a
first class lever , second class lever , pulley , screw.
c) the most readily available source of energy
wind energy, solar energy, geothermal energy, water energy.
d) the upward push of water on a floating object is called
buoyant force, volume, density, pressure.​

Answer 1

Answer:

1. Gravitational force
2. screw
3. solar energy
4. buoyant force

Answer 2

Answer:

a) gravitational force

b)first class lever

c) solar energy

d)buoyant force

Hope it helps!!