Physics

Sound is produced by our vocal cord due to...

• Vibration of throat

• Air in lungs

• Vibration of nose

• Vibration of lungs

The speed of sound in steel is....

• 5690m/s

• 5960m/s

• 5096m/s

• 5069m/s

The SI unit of time is....

• Minute

• Second

• Hour

• Day

Rest and motion are....... terms.

• Non - relative

• Relative

• Both of them

• Non of them

A moving truck is in............ With respect to tree.

• Rest

• Motion

• Force

• Ramdom

Scissor is.......... Class lever

• First

• Second

• Third

• Fourth

Temperature is measured in

• Kg

• Meter

• Joule

• Kelvin

There are....... Types of pulley.

• 1

• 2

• 3

• 4

Door knob is the example of....

• Wheel and axle

• Pulleys

• Inclined plane

• Lever

......colour object absorp more heat.

• White

• Blue

• Black

• Red