Which of the following is made from a wheel and a rope ?
Pulley
Lever
axle
Screw
Which one is example for simple machines?
Chair
Both a & b
Which help us to walk ?
Friction
Inertia
Collision
None of these
Which pull things towards earth ?
Gravitational force
Frictional force
Magnetic force
Which of the following is done when force moves on object through a certain distance ?
Force
Work
Wedge
Energy
An ______ simply slope over which a load can be pushed up or down.
Inclined plane
The force exerted by the muscles of our body is called
Muscular force
Mechanical force
Elastic force
Which one is example of wheel and axle?
Steering wheel
Pedal
Screwdriver
All of these
Which can be used to push or pull something ?
Velocity
Length
Breadth
What is needed to move light things?.
Weak force
Strong force
Negative force