Q2 - Physical Science

Front

What is a frame of reference?

Back

A frame of reference is a system for specifying the precise location of objects in space and time. It is used to measure motion and determine whether an object is moving.

Front

What is mass?

Back

Mass is a measure of the quantity of matter in an object, typically measured in kilograms or grams.

Front

What happens to an object's acceleration when more force is applied?

Back

The acceleration of an object increases when more force is applied, according to Newton's second law of motion.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can occur due to a change in speed or direction.

Front

What is the SI unit for force?

Back

The SI unit for force is the Newton (N).

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. It is directly related to the mass of the object.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is Newton's first law of motion?

Back

Newton's first law 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 a net external force.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = m * a, where F is force, m is mass, and a is acceleration.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as weight = mass * gravitational acceleration (W = m * g).