Distance and Displacement

Front

What is a frame of reference?

Back

A frame of reference is a place or object used for comparison to determine if another object is in motion.

Front

What is displacement?

Back

Displacement is the distance and direction of an object's change in position from a starting point.

Front

What is the unit for measuring distance?

Back

The unit for distance is meters (m).

Front

If Jerry walked from home to school (3 km) and then from school to the park (5 km), what is his total distance?

Back

8 km.

Front

What is the displacement of Jermaine after running 2 laps around a 400 meter track?

Back

0 meters, because he ends up at the starting point.

Front

What is the difference between distance and displacement?

Back

Distance is the total path traveled, while displacement is the shortest path from the starting point to the final position.

Front

How do you calculate total distance traveled?

Back

Total distance is calculated by adding all the lengths of the paths taken.

Front

What does a motion detector do?

Back

A motion detector identifies whether an object is in motion relative to a frame of reference.

Front

What is a reference point?

Back

A reference point is a stationary object used to determine the position of another object.

Front

If an object moves 10 meters east and then 10 meters west, what is its displacement?

Back

0 meters, because it returns to the starting point.