Motion and time

What is the comparison of an unknown quantity with some fixed quantity of the same kind ?

• Measurement

• Speed

• A standard unit

• Pendulum

A simple pendulum is oscillating between two points A and B as shown in the figure . Is the motion of Bob non- uniform motion or uniform motion

• Uniform motion

• Non - Uniform motion

A substance whose crystals can vibrate fast is known as ?

• Pendulum clock

• Sand clock

• Quartz

• Atomic clock

The distance between Delhi and Chandigarh is 260 km . A bus takes 5 hours to travel from Delhi to Chandigarh . At what speed does it travels ?

(a)  

What is the formula to find distance ?

• D=s×t

• D= t÷ s

• D= s÷t

What is speedometer?

• Speedometer gives the distance travelled in kilometers .

• Speedometer gives the speed of the moving vehicle directly in km/h.

• Speedometer gives speed of the moving vehicle directly in m /s

Which is the unit of temperature?

(a)  

In earlier times what unit was used to measure time ?

(a)  

10 decades =?

• 1 century

• 1 year

• 1 decade

• 1 millennium

One complete to and fro movement of the pendulum is called an ?

• Time period

• Sandclock

• Speed

• Oscillation