Motion and Time

The most appropriate unit for expressing the speed of a space rocket is:

• m/s

• km/s

• km/h

• km/min

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

• barometer

• speedometer

• anemometer

• odometer

The measurement of small time intervals became possible with the development of :

• sand clock

• sundial

• pendulum clock

• water clock

The slope of a distance-time graph of a moving object indicates:

• distance moved by the object

• time taken by the object

• speed of the object

• position of the object

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 distance-time graph of vehicle moving with constant speed is a ________ line

• Curved

• horizontal

• straight

• parallel

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

• duration

• displacement

• time interval

• time - period

The to and fro motion of a simple pendulum is an example of _________ motion.

• Rectilinear

• curvilinear

• circular

• oscillatory

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