Class 7 Science Chapter 13 Motion and Time Exercise Solutions

Which type of motion does the motion of your hands while running represent?

What type of motion does the horse pulling a cart on a straight road represent?

What type of motion does a child in a merry-go-round experience?

What type of motion does the hammer of an electric bell exhibit?

Which type of motion does the child on a see-saw experience?

What type of motion does a train on a straight bridge exhibit?

What is the basic unit of time?

What determines the time period of a pendulum?

What is the speed of a train typically expressed in?

What is the time period of a simple pendulum that takes 32 seconds to complete 20 oscillations?

What is the speed of a train that takes 4 hours to cover a distance of 240 km?

If the odometer reading changed from 57321.0 km to 57336.0 km in 20 minutes, what is the speed of the car in km/min during this time?

How far is Salma's school from her house if she takes 15 minutes to reach her school on a bicycle with a speed of 2 m/s?

What does the distance-time graph look like for a car parked on a side road?

What is the purpose of a safety pin in an electrical circuit?

Why is the bulb in the given circuit not glowing?

In the context of electrical circuits, what does a safety pin symbolize?

What component of an electrical circuit does a battery symbolize?

What is the function of connecting wires in an electrical circuit?

What does a bulb symbolize in an electrical circuit diagram?

Which of the following is a correct statement about making a battery of two cells?

What happens when the electric current through the fuse exceeds a certain limit?

What does an electromagnet do when a piece of iron is brought near it?

What component does an electric bell have?

What is the safety device based on the heating effect of electric current called?

Which effect of electric current is utilized in a room heater?