Motion and time

The distance covered by an object in a ________ is called as the speed.

• Unit time

• Unit length

• Position

The time taken by the pendulum to complete ________ is called it's

time period .

• Ten oscillations

• One oscillation

• Five oscillations

The smaller units of time are ______ and _______ .

• kilometre , metre

  (km) , (m)

• centimetre , millimetre

  (cm) , (mm)

• centimetre , kilometre

  (cm) , ( km)

The basic unit of speed is__________.

• m/s

• m/hr

• km/hr

Who invented the pendulum clocks?

• Galileo Galilie

• James Watt

• Albert Einstein

Earlier time measuring instrument

• 
• 
• 

_______ measures the speed and ________ measures the distance moved by the vehicle.

• 
• 
• 

A simple pendulum consists of a _________ and thread suspended from a rigid stand.

• 
• 
• 

To and fro motion of a simple pendulum

shows __________ .

• 
• 
• 

The instrument installed in a car for measuring the distance travelled by the car is called:

• barometer

• speedometer

• anemometer

• odometer