Grade 7 Motion and Time 2

The metallic ball in a pendulum is called as_________.

• Gong.

• Fork.

• Rod.

• Bob.

The motion that repeat itself after regular intervals of time can be_______.

• To and fro motion

• Circular motion

• Rectilinear motion

• Periodic motion

The meter that is used to measure the distance moved by the vehicle is known as_______.

• Speedometer

• Odometer

• Ammeter

• Chronometer

Which of the following relation is correct?

• Speed = Distance × Time

• Speed = Time / Distance

• Speed = Distance / Time

• Speed = 1/ Distance × Time

The value of 2 km/h is equal to____.

• 4/9 m/s.

• 13/9 m/s.

• 5/9 m/s.

• 7/9 m/s

An ancient time measuring device SUNDIAL at Jantar Mantar is in ___________.

• Ahmedabad

• Delhi

• Bombay

• Lucknow

The time taken by a pendulum of a given length to complete one oscillation is___________.

• Different at different times

• Decreases at different times

• Same at all times

• Increases at different times

To and fro movement along a fixed axis is called________.

• Oscillation

• Amplitude

• Time period

• None of these

When a body covers equal distance in equal interval of time, the speed of the body is called as_______.

• Average speed

• Non uniform speed

• Uniform speed

• None of these

The speed of a train is 20 m/s. What is the speed in km/h ?

• 60 km/h

• 40 km/h

• 72 km/h

• 20 km/h