Work and Energy

(a)   is the capacity to do work.(all letters should be in small)

________is the main source of light energy.

• Led

• Tubelights

• Sun

• Lasers

An electric bell produces which energy?

• kinetic energy

• sound energy

• mechanical energy

• electric energy

what is the formula of work?

• W=A*F

• W = F*D

what is the kinetic energy?

• energy possessed by an object due to its position or condition.

• energy possessed by an object due to its motion

Is hammer is a example of mechanical energy?(choose true/false)

• True

• False

what is a man made source of light?

• bulb

• sun

what is a main source of light energy?

• sun

• bulb

drum is a example of chemical energy?

• True

• False

a short distance between the initial and the final position..of a moving object(all letters should be small)

(a)