Physics Semester 1 Final Exam Review - long

Front

What is the resultant direction?

Back

40° North of East

Front

What happens to the shape of objects in an elastic collision?

Back

Objects keep their shape.

Front

What is inertia?

Back

An object in motion that wants to stay in a straight path unless it is acted upon by another force.

Front

What is the rate at which velocity changes called?

Back

Acceleration.

Front

What is the formula for calculating acceleration?

Back

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

Front

Define momentum.

Back

Momentum is the product of an object's mass and its velocity (p = mv).

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

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 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.

Front

What is a vector quantity?

Back

A quantity that has both magnitude and direction, such as velocity or force.