Kinetic energy is directly proportional to
The square of the velocity
The velocity
The cube of the velocity
Half of the velocity
Inertia is measured by
The mass of a body
The speed of a body
The acceleration of a body
The velocity of a body.
What is the K. E of a football of mass 0.4 kg, moving with velocity 20 m/s?
8 J
80 J
0.8 J
0.08 J
When a car rounds a bend, a frictional force exerted by the road is
Inwards
Outwards
Forwards
Backwards
The energy possessed by a body because of its motion is called
Kinetic energy
Potential energy
Magnetic energy
Elasticity
What is the unit of energy?
Newton
Joule
Kg
Coulomb
If we know initial velocity (u), final velocity (v) and time (t). Then the equation for acceleration is
The energy possessed by a body by virtue of its position is called
Gravitational energy
Electrical energy
½ mv² = mgh. This is an example of
Newton's second law of motion
Projectile motion
Elastic collision
Principle of conservation of energy
Rate of change of velocity with time is called
Average speed
Acceleration
Average velocity
Speed
