Newton's Law & Motion Review

Front

What is Newton's Second Law of Motion?

Back

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

Front

What is the formula to calculate force?

Back

F = ma, where F is force, m is mass, and a is acceleration.

Front

If a car has a mass of 1500 kg and accelerates at 3 m/s², what is the force applied?

Back

4500 N.

Front

What is inertia?

Back

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

Front

What is the difference between speed and velocity?

Back

Velocity is speed with a given direction, while speed is a scalar quantity that only measures how fast an object is moving.

Front

What does it mean for forces to be unbalanced?

Back

Unbalanced forces result in a change in motion; they are not equal and opposite.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force is the Newton (N).

Front

What is momentum?

Back

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

Front

How does friction affect motion?

Back

Friction opposes the motion of an object, acting in the opposite direction to the applied force.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object over time.