Basic science jss2

Energy is used up when work is

• (a)done

• (b) achieve

• (c)accompanished

• (d) assemble

Energy is ability to do

• (a)power

• (b) force

• (c)work

• (d) express feeling

The light energy from the sun is called

• (a) solar energy

• (b)heat energy

• (c) kinetic energy

• (d) Atomic energy

The unit of energy is

• (a)watts

• (b)joules

Mathematical expression for work done by a body is represented below as

• (a)W=fxd

• (b)W=nxt

• (c)S=dxt

• (d)W=fxj

Potential energy is the type of energy possessed by a body due to its

• (a) motion

• (b) position

Mathematical expression of potential energy is

• (a)K.E=1/2MV²

• (b)P.E=m.g.h

………is the energy possessed by a moving body

• (a) potential energy

• (b) kinetic energy

……is mass of the objects

• (a)A

• (b)M

• (c)J

• (d)K

What is the mathematical expression of power?

• (a)P =mgh/t

• (b)P=workdone/time