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Force and Pressure MCQ Quiz for CBSE Class 8 Science

10 Questions

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Force and Pressure MCQ Quiz for CBSE Class 8 Science

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Questions and Answers

What is force?

In science, force is defined as a push or pull of an object.

What are the two components of force?

Force has both magnitude and direction.

How does force bring about a change in a body?

Force brings about a change in the direction or state of motion of a body.

What is a push?

A push is a force exerted away from the body. Signup and view all the answers

What is magnetic force?

Magnetic force is the force of attraction or repulsion between two magnetic bodies. Signup and view all the answers

When an object slips off your hand, it always falls down. What pulls it down?

Gravity Signup and view all the answers

If you roll a ball on a level ground, it slows down and after sometime it will come to a stop. What makes the ball stop?

Friction Signup and view all the answers

What forces acting on objects, change their state or state of motion?

Forces acting on objects can change their state or state of motion. Signup and view all the answers

Why does the toothpaste come out when we press the tube?

When we press the tube, it exerts a contact force on the toothpaste, squeezing it out. Signup and view all the answers

Why does the needle of a magnetic compass move when we place a bar magnet near it?

The needle of a magnetic compass moves because of the magnetic force exerted by the bar magnet. Signup and view all the answers

Study Notes

Forces and Motions

A force is a push or a pull that causes an object to change its state of motion or shape.
A force has two components: magnitude (amount of force) and direction.

Types of Forces

Magnetic force is a type of force that arises from the interaction of magnets or magnetic fields.

Gravity

Gravity is a force that pulls objects towards each other, and on Earth, it pulls objects towards the ground.
When an object slips off your hand, gravity pulls it down towards the ground.

Friction

Friction is a force that opposes motion between two surfaces in contact.
When a ball rolls on a level ground, friction slows it down and eventually brings it to a stop.

External Forces

External forces acting on objects can change their state or state of motion.
Examples of external forces include pushes, pulls, and magnetic forces.

Everyday Applications

When we press a toothpaste tube, the force applied makes the toothpaste come out.
When we place a bar magnet near a magnetic compass, the magnetic force makes the needle move.

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Description

Test your knowledge on force and pressure with this MCQ quiz! Covering topics such as the definition of force, its interaction with objects, and more, this quiz is a great way to review and reinforce your understanding of Chapter 11 (renumbered as Chapter 8) in the CBSE Class 8 Science syllabus.