Science questions in short. [2 marks ]

What is the difference between weight and mass?

Is there any force that acts on them? What exerts this force?

Why do all the objects fall towards the Earth?

Does it mean that there are two kinds of electrical charges?

Is it essential for an object applying force on another object to always be in contact with it?

Why is it easier to slip on a wet surface?

Is any force being applied to an object in a non-uniform motion?

When you drop a coin in a glass of water, it sinks, but when you place a bigger wooden block in water, it floats. Explain.

The force of friction always acts on all the moving objects, and its direction is always opposite to the direction of motion. Since the force of friction arises due to contact between surfaces, it is also an example of a contact force.
Q.1. On which object does friction work?
Q.2. How is the friction generated?

A force may make an object move from rest. It may change the speed of an object if it is moving. It may change the direction of motion of an object. It may bring about a change in the shape of an object. It may cause some or all of these effects. While a force may cause one or more of these effects, it is important to remember that none of these actions can take place without the action of a force.
Q.1. What will happen if force is applied to an object at rest?
Q.2. What are some possible effects when force is applied to any object?

Why do we experience less pressure when wearing flat shoes on sand compared to pencil heels?

Compare gravitational, magnetic, and electrostatic forces.

Discuss the effects of friction and how it can be both helpful and harmful.

Explain how force can change the state of motion and shape of an object.

Describe different types of forces with suitable examples.

What are non-contact forces? Write the different types of non-contact forces.

What will be the net force on an object when two forces act on an object in the same direction?

Based on the interaction, what are the two categories of forces?

Explain how force can change the shape of an object.

What is the role of muscular force in daily life?

Why do objects fall to the ground when dropped?

How does friction affect motion?

Define contact and non-contact forces with examples.

What is electrostatic force?

Define the force of friction.

What is muscular force?

What happens to the springs of a sofa when we sit on it?

What can be the result of a force applied on an object?

What is the necessary condition for a force to come into play?

Name the various types of forces.

What causes a ball to stop rolling on the floor?

What kind of force is gravity?

Give one example of a contact force.

Name the SI unit of force.

What is force?

Distinguish between contact forces and non-contact forces with examples.

The force changes the shape of the dough.

What may be the consequences when a force is applied to an object?

Which force is responsible for the downward movement of a parachute? Will he come down with the same speed without the parachute?

Name the forces acting on the car stuck to an electromagnet in a Junkyard. Which one of them is larger?

Two thermocol balls held close to each other move away from each other. When they are released, name the force that might be responsible for this phenomenon. Explain.

What are the effects of force on an object?

What is the similarity between electrostatic and magnetic forces?

How does an applied force change the speed of an object?