First Term Exam Grade IX

The Si unit of force is

• Joule

• Hertz

• Newton

• Pascal

The mass per unit volume is called ..........

• Weight

• Velocity

• Work

• Denisty

Which one of the following is a derived unit?

• Kelvin

• Mole

• Hertz

• Candela

The rate of change of ....... is called velocity.

• distance

• displacement

• wavelength

• mass

Inertia depends upon ........

• acceleration

• weight

• force

• mass

The product of mass and velocity of a moving body is called.....

• weight

• speed

• momentum

• force

.......... is that produces 1m/s² acceleration on a body of 1 kg mass.

• 1 J work

• 1 watt power

• 1 N force

• 1 J energy

The rate of change of velocity is called ........

• Speed

• Retardation

• Uniform acceleration

• Acceleration

The force acting on a body of mass 2000 gram with the accelerationm of 15 m/s² . Find the magnitude of force.

• 25 N

• 30 N

• 35 N

• 40 N

A bus starts from rest. If the acceleration of the bus is 0.5m/s² , what will be its velocity after 2 minutes.

• 40 m/s

• 50 m/s

• 60 m/s

• 70 m/s