Physical Science Final Exam Mixed Review

Front

What is Newton's First Law of Motion?

Back

An object at rest will remain at rest, and an object in motion will continue in motion with the same speed and in the same direction unless acted upon by a net external force.

Front

What does Newton's Second Law of Motion state?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

Define constant speed.

Back

Constant speed means that an object covers equal distances in equal intervals of time, regardless of how small the time intervals are.

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 inertia?

Back

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

Front

What happens to an object in motion if no net force acts on it?

Back

It will continue to move at a constant velocity.

Front

What is the role of air resistance when a bird flies?

Back

Air resistance acts against the motion of the bird, but the bird generates lift by pushing down on the air.

Front

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

Back

According to Newton's Second Law, the net force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).

Front

What is an example of Newton's Third Law in everyday life?

Back

When you jump off a small boat, you push the boat backward as you move forward.