Understanding Forces and Motion Concepts

The video tutorial explains the concept of force, its types, and effects. It covers the definition of force as a vector quantity with magnitude and direction, and its SI unit, the newton. The tutorial distinguishes between contact and non-contact forces, as well as balanced and unbalanced forces, explaining how they affect the motion of objects. It also discusses the various effects of force, such as changing an object's motion, shape, and direction.

What is the SI unit of force?

• Watt

• Newton

• Pascal

• Joule

Which of the following is a characteristic of force?

• It is a vector quantity

• It is a scalar quantity

• It has only magnitude

• It has no direction

What type of force occurs when two objects are in physical contact?

• Gravitational force

• Magnetic force

• Contact force

• Non-contact force

Which force acts between objects that are not touching each other?

• Contact force

• Frictional force

• Non-contact force

• Tension force

What happens to an object when balanced forces act on it?

• It stops moving

• It remains stationary or moves at constant velocity

• It changes direction

• It accelerates

What is the resultant force when forces are balanced?

• Zero

• Greater than zero

• Less than zero

• Equal to the force applied

What effect does an unbalanced force have on an object?

• No effect

• Causes a change in motion

• Keeps it stationary

• Increases its mass

How can force affect the shape of an object?

• By making it lighter

• By making it heavier

• By stretching or compressing it

• By changing its color

What can force do to a stationary object?

• Keep it stationary

• Produce motion

• Change its color

• Make it disappear

Which of the following is an effect of force on an object?

• Change in taste

• Change in color

• Change in direction

• Change in temperature