Motion and Measurement of Distances Quiz

How many centimetres are there in 1 m?

• 100 cm

• 10000 cm

• 1000 cm

• 10 cm

Give two examples of periodic motion.

• Linear motion, Circular motion

• Oscillations of a pendulum, Motion of swing

• Random motion, Vibrational motion

• Motion of a car, Motion of a bicycle

Why can a pace or a footstep not be used as a standard unit of length?

• Because it is too large

• Because it is too small

• Because it varies from person to person

• Because it is not accurate

Name the device used to measure the size of your wrist.

• Measuring tape

• Weighing balance

• Metre scale

• Thread

Define rest and motion.

• Rest: Objects that are still. Motion: Objects that are still.

• Rest: Objects that are moving. Motion: Objects that are moving.

• Rest: Objects that do not change their positions. Motion: Objects that change their positions.

• Rest: Objects that change their positions. Motion: Objects that do not change their positions.

Give two examples of linear motion.

• Random motion, Vibrational motion

• Linear motion, Circular motion

• Oscillations of a pendulum, Motion of swing

• Motion of a car, Motion of a bicycle

State two precautions to be observed while measuring length with the help of a metre scale.

• Keep eyes closed, Stand far away

• Initial point must coincide with zero, Keep eye in line with point of measurement

• Use a ruler, Measure quickly

• Use a magnifying glass, Measure in the dark

What type of motion do the blades of an electric fan have?

• Vibrational motion

• Random motion

• Circular motion

• Linear motion

Give the unit for measuring the distance between Delhi and Jaipur.

• Metre

• Kilometre

• Millimetre

• Centimetre

Arrange the following lengths in increasing magnitude: 1 millimetre, 1 centimetre, 1 metre, 1 kilometre.

• 1 metre < 1 centimetre < 1 millimetre < 1 kilometre

• 1 centimetre < 1 millimetre < 1 metre < 1 kilometre

• 1 kilometre < 1 metre < 1 centimetre < 1 millimetre

• 1 millimetre < 1 centimetre < 1 metre < 1 kilometre