KINETIC AND POTENTIAL ENERGY

child riding a bicycle

• kinetic energy

• elastic potential energy

• gravitational potential energy

when a ball is thrown vertically upward what type of transformation of energy is there

• potential to kinetic energy

• kinetic to potential energy

• chemical to heat energy

• potential energy

A fighter plane is travelling at a velocity of 100 m/s and it has a mass of 2500 Kg. Compute its Kinetic energy?

• 12500 J

• 12500 kJ

• 250000 J

• 125000 J

A man is driving a truck of with a velocity 10 m/s and possesses Kinetic energy of 10,000 J. Find out the mass of a truck?

• 200 kg

• 2000 kg

• 2000 kg

• 20000 kg

Energy can neither be created nor be destroyed

• true

• false

• can not say

An iron ball of mass 5 kg is dragged in the upward direction on an inclined plane. Calculate the total potential energy gained by this ball, given that the height of the wedge is 20 meter.( g =10 N/kg)

• 100 J

• 1600 J

• 1000 J

The energy of a the food that we eat is stored as

• heat energy

• chemical energy

• kinetic energy

• nuclear energy

The energy stored in fire crackers is in the form of

• magnetic energy

• sound energy

• chemical energy

• heat energy

The energy possessed by a body by virtue of its position is known as

• kinetic energy

• potential energy

• chemical energy

• gravitational energy

In the phenomenon photosynthesis ,there is transformation of

• heat to light energy

• light to chemical energy

• light to food energy

• heat to chemical energy