Motion and Measurement of Distances quiz

The SI unit of length is the:

1 km is equal to:

The motion of a swinging pendulum is:

The motion of a car on a straight road is:

1 cm is equal to:

The best way to measure the length of a curved line is with:

The motion of the blades of a ceiling fan is:

Which is not a standard unit of length?

250 cm is equal to:

The length of a cricket pitch is best measured in:

Give two examples of periodic motion. (2 marks)

Why do we need standard units of measurement? (2 marks)

What is the correct position of the eye while taking a reading? (2 marks)

Name two means of transport used in ancient times. (2 marks)

Convert 5 km 50 m into metres. (2 marks)

What is the type of motion of a child on a swing? (2 marks)

Why is a cubit not a good unit for measuring cloth? (2 marks)

Give one example of an object that shows both rotational and rectilinear motion. (2 marks)

Which unit would you use to measure the thickness of a coin and the distance between two cities? (2 marks)

What is meant by "at rest"? Give one example. (2 marks)

The distance between Delhi and Mumbai by road is about 1400 km. Express it in metres. If a car covers 70 km in an hour, how many hours will it take? (3 marks)

A ribbon is 3 m 45 cm long. It is cut into 5 equal pieces. Find the length of each piece in cm. (3 marks)

A child measures the length of a room with footsteps and finds it 18 footsteps. If each footstep is 25 cm, find the length of the room in metres. (3 marks)

A pendulum makes 20 complete swings in 40 seconds. How long does one swing take? How many swings will it make in 2 minutes? (3 marks)

A runner runs 4 rounds of a circular track of length 400 m. Find the total distance in metres and kilometres. Name the type of motion of the runner on the track. (3 marks)

Read the passage and answer the questions. Riya and her mother went to buy cloth. The shopkeeper measured the cloth using his arm length from the elbow to the fingertip. Riya's mother insisted that he use a metre rod instead. (i) What is the unit used by the shopkeeper called? (ii) Why did Riya's mother ask for a metre rod? (iii) What problem would arise if different shopkeepers used their own arm lengths? (5 marks)

Read the passage and answer the questions. At a fair, Aman saw a giant wheel turning, a toy train running on a straight track and a merry-go-round spinning. He also saw a girl on a swing. (i) Name the type of motion of the giant wheel. (ii) Name the type of motion of the toy train on a straight track. (iii) Which of these motions are periodic? (5 marks)

Read the passage and answer the questions. Students measured the length of a curved path drawn on paper. Priya placed a thread along the path, marked the ends and stretched it along a metre scale. The thread measured 23.5 cm. (i) Why did Priya use a thread? (ii) What is the length of the curved path in mm? (iii) Write one precaution while measuring with a thread. (5 marks)

Read the passage and answer the questions. A bicycle is moving along a straight road. Its wheels are turning and its pedals move in circles as the rider pushes them. (i) What type of motion does the bicycle as a whole have? (ii) What type of motion do the wheels have? (iii) Name one more object that has two kinds of motion at the same time. (5 marks)

Read the passage and answer the questions. A scale in Raju's geometry box had a broken end, so the zero mark was missing. He placed one end of his eraser at the 1 cm mark and the other end reached the 5.6 cm mark. (i) What is the length of the eraser? (ii) Why did he start from the 1 cm mark? (iii) Suggest one more precaution for accurate measurement. (5 marks)

Explain the history of means of transport from ancient times to modern times with a flowchart. Describe how the invention of the wheel changed transport. (6 marks)

Describe the correct method of measuring length with a scale, including position of the scale, starting point and eye position. Draw a labelled diagram and list three precautions. (6 marks)

Explain rectilinear, circular and periodic motion with two examples each. Draw labelled diagrams for each type, and give an example of an object showing more than one type. (6 marks)

Explain why standard units are needed, using examples of handspan, cubit and footstep. Write the SI unit of length and the conversions between mm, cm, m and km, and convert 3.75 km to cm and 4500 mm to m. (6 marks)

Describe an activity to measure the length of a curved line using a thread. Draw a diagram and write the steps. Also explain how you would measure the girth of a tree trunk. (6 marks)