Yr 10 Science: Topic 2a: Motion - Distance, Time & Displacement

Scott drives a Jeep 12 km east, then 4 km north, then finally 3 km west. He traveled a total distance of:

• 5 km
• 10 km
• 13 km
• 19 km

A ping-pong ball rolls forward 6 meters, and bounces backward 3 meters. It traveled a total distance of:

• 9 meters
• 6 meters
• 3 meters
• 0 meters

Liza is swimming laps from one end of a 50 meter pool to the other. Going from one end to the other is considered one lap. If she swims four complete laps, which statement is TRUE?

• Her distance and displacement are both zero.
• Her distance is zero, but her displacement is 200 meters.
• Her distance is 200 meters, but her displacement is zero.
• Her distance and displacement are both 200 meters.

Ivan walks 10 meters west to the water fountain, then runs 2 meters east to his class to avoid a lockout. His displacement would be:

• 8 meters
• 8 meters, east
• 8 meters, west
• 12 meters

During a game of dodgeball, Marina runs 2.45 meters forward to grab a dodgeball, then runs 1.25 meters backward to avoid a opponent's dodgeball. Her displacement would be:

• 3.7 meters backwards
• 1.2 meters backwards
• 3.7 meters forwards
• 1.2 meters forwards

Ronaldo runs across a soccer field, moving 10 meters north, then 8 meters west. His displacement would be:

• 10.2 m, NW
• 12.8 m, NW
• 15.4 m, NW
• 18.0 m, NW

Distance and direction of an object's change in position from a starting point

• displacement
• distance
• motion
• reference point

Jerry walked from home to school, then from the school to the park. What is his total displacement?

• 2 km

• 5 km

• 8 km

• 10 km

Jerry walked from home to school, then from the school to the park. What is his total distance?

• 2 km

• 5 km

• 8 km

• 10 km

How can you tell motion occurs?

• The object's speed decreases in regards to the reference point.

• The object and the reference point both move at the same speed.

• The object's speed increases in regards to a reference point.

• The object's position changes in regards to a reference point.