Physics Semester One Exam SY2024-25

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its state of motion, resulting in acceleration or a change in direction.

Front

What does the Law of Universal Gravitation state?

Back

The Law of Universal Gravitation states that every object in the universe attracts every other object with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Front

What happens to the gravitational force if the mass of one object is doubled?

Back

If the mass of one object is doubled, the gravitational force between the two objects also doubles.

Front

What is a frictional force?

Back

A frictional force is a force that opposes the relative motion of two surfaces in contact.

Front

What is a normal force?

Back

A normal force is the force exerted by a surface that supports the weight of an object resting on it, acting perpendicular to the contact surface.

Front

What is Newton's First Law of Motion?

Back

Newton's First Law of Motion states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by an unbalanced force.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, which depends on their masses and the distance between them.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion, whether at rest or in motion.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion, while unbalanced forces result in a change in motion.

Front

What is buoyant force?

Back

Buoyant force is the upward force exerted by a fluid on an object immersed in it, which opposes the weight of the object.