Physics MCQs for Class 9 with Answers Chapter 5

In Einstin’s mass energy equation, c is the :

Speed of sound

Speed of light

Speed if volume

None of these

Formula of work is:

F X S

F X V

F/S

S/F

1 hp is equal to :

747 W

746 W

748 W

1000 W

1 KW (kilo Watt) is equal to:

102 W

103 W

105 W

106W

The energy present in our food is:

Mechanical energy

Gravitational potential energy

Chemical energy

Nuclear energy

When a body is lifted through height h, the work done on it appears in the form of its

Kinetic energy

Potential eneger

Elastic potential energy

Geothermal energy

The energy stored in coal is:

Heat energy

Kinetic energy

Chemical enegy

Nuclear energy

The S.I unit of power is :

j/s2

J

W

J/M2

If 1N is force and body is displaced to 1m than work is :

2 J

1 J

3 J

4 J

Work is zero when “F” and “S” will be:

Parallel

Perpendicular

Anti parallel

Tangent