Physical Science 1st Semester Review

Front

What does momentum depend on?

Back

Momentum depends on mass and velocity.

Front

What is the direction of net force if it is acting to the right?

Back

The net force is directed to the right.

Front

Which law of motion states that force equals mass times acceleration?

Back

Newton's second law of motion.

Front

How do you calculate acceleration?

Back

Acceleration = (Final speed - Initial speed) / Time.

Front

What is the formula for momentum?

Back

Momentum = Mass x Velocity.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass.

Front

What is the formula for calculating weight?

Back

Weight = Mass x Gravitational acceleration (9.8 m/s² on Earth).

Front

What is the principle of conservation of momentum?

Back

In a closed system, the total momentum before an event is equal to the total momentum after the event.