Kinematics

Front

What is a scalar quantity?

Back

A scalar quantity is completely described by magnitude alone, without any direction.

Front

What is a vector quantity?

Back

A vector quantity is completely described by a magnitude with a direction.

Front

What is the difference between distance and displacement?

Back

Distance is the total path length traveled, while displacement is the shortest straight-line distance from the initial to the final position.

Front

If you run 3 km to a friend's house and walk back home, what is your total distance traveled?

Back

6 km.

Front

If you run 3 km to a friend's house and walk back home, what is your displacement?

Back

0 km.

Front

What is speed?

Back

Speed is a scalar quantity that measures how fast an object is moving, defined as distance traveled per unit of time.

Front

What is velocity?

Back

Velocity is a vector quantity that measures the rate of change of displacement, defined as displacement per unit of time.

Front

What is the average velocity if an object returns to its starting point?

Back

0 m/s.

Front

Can an object have a speed greater than zero and a displacement of zero?

Back

Yes, an object can be moving and still have zero displacement if it returns to its starting point.

Front

What is the formula for average speed?

Back

Average speed = Total distance / Total time.