Physics Motion Review

Distance

• Total length of the path travelled

• How far an object is from its starting point

• Location of an object relative to a defined zero point

Displacement

• Total length of the path travelled

• How far an object is from its starting point

• Location of an object relative to a defined zero point

Object C had an initial position of 2 m and a final position of 10 m. The displacement of object C can be shown with this equation: Displacement = final position - initial position
What was the displacement of object C?

• +6 m
• +8 m
• -4 m
• -2 m

Object B had an initial position of 12 m and a final position of 7 m. The displacement of object C can be shown with this equation: Displacement = final position - initial position
What was the displacement of object B?

• +5 m
• - 6 m
• -5 m
• +6 m

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

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

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

You are riding your bike at 9 km/h. Ten minutes later, your speed is 6 km/h.

• Acceleration occurred because speed increased.
• Acceleration occurred because speed decreased.
• Acceleration occurred because you changed directions.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

At what speed would a car have to move in order to travel 20 kilometers in 2 hours.

• 5 km/hr

• 10 km/hr

• 20 km/hr

• 40 km/hr

When you know both the speed and direction of an object's motion, you know the

• average speed of the object
• acceleration of the object
• distance the object has traveled
• velocity of the object