Physics Final Exam

Front

What is a vector quantity?

Back

A vector quantity is a physical quantity that has both magnitude and direction, such as velocity or force.

Front

What is a scalar quantity?

Back

A scalar quantity is a physical quantity that has only magnitude and no direction, such as mass or temperature.

Front

What is the relationship between force, mass, and acceleration?

Back

Force equals mass multiplied by acceleration (F = m × a).

Front

What happens to a projectile's vertical and horizontal velocities?

Back

A projectile has vertical acceleration due to gravity and a constant horizontal velocity.

Front

What does it mean if an object is in free fall?

Back

An object in free fall is falling under the influence of gravity only, with no other forces acting on it.

Front

How does mass affect acceleration when force is constant?

Back

If the force is constant, an increase in mass results in a decrease in acceleration (a = F/m).

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Front

What is the principle of conservation of momentum?

Back

The total momentum of a closed system remains constant if no external forces act on it.

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 acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.