Force and Motion Unit Review

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction. It is calculated as distance divided by time.

Front

How do you calculate velocity?

Back

Velocity = Distance / Time. For example, if a toy car rolls 5 meters in 2 seconds, its velocity is 2.5 m/s down.

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd 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 static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from moving when a force is applied.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It is calculated as the change in velocity divided by the time taken.

Front

What is an example of acceleration?

Back

A figure skater making 8's at a constant speed is accelerating because they are changing direction.

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 direction.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a force.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity. It is a vector quantity.

Front

What is the formula for acceleration?

Back

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