Science Test Class 7 - Motion and Time

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

• barometer

• speedometer

• anemometer

• odometer

The clocks and watches which are used for measuring time are based on :

• Rectilinear motion

• circular motion

• periodic motion

• rotational motion

The distance moved by an object in a unit time is called

• Distance

• Displacement

• Time

• Speed

The time taken by the pendulum to complete one oscillation is called its

• duration

• displacement

• time interval

• time - period

A bus takes 30 minutes to travel a distance of 25 kilometers. The speed of the bus in km/h is :

• 55 km/h

• 50 km/h

• 5 km/h

• 75 km/min

Which one of the following is a time measuring device:

• sundial

• odometer

• speedometer

• barometer

SI unit of time is:

• minute

• hour

• second

• mili seconds

The speed of an object can be represented by:

• Pie chart

• bar graph

• distance-time graph or line graph

• histograms

The distance moved by an object in a unit time is called

• acceleration

• speed

• motion

• displacement

Observe the figure.

The time period of a simple pendulum is the time taken by it to travel from

• A to B and back to A

• O to A, A to B and B to A

• B to A, A to B and B to O

• A to B