Motion

What is the displacement of an object at rest?

• 0 m
• 1 m
• 9.8 m
• 9.81 m

What is velocity?

• The total distance traveled by an object
• The distance from start to end, including the direction
• How fast an object travels
• The speed at which an object travels plus its direction

What is acceleration?

• It is the displacement.
• It is the velocity.
• It is the rate of change of the displacement.
• It is the rate of change of the velocity.

Tags

NGSS.HS-PS2-1

Which of the following is NOT a valid unit for acceleration?

• m/s/s
• m/s²
• km/hr/sec
• km/hr

What happens to an object's motion when the velocity is positive and the acceleration is negative?

• The object slows down.
• The object speeds up.
• The object remains at a constant velocity.
• The object remains at rest.

Tags

NGSS.HS-PS2-1

Bob walks 2 blocks east, 4 blocks south, and 2 blocks west. What is his displacement?

• 2 blocks south
• 4 blocks south
• 2 blocks south, 2 blocks east
• 4 blocks south, 2 blocks east

Bob walks 2 blocks east, 4 blocks south, and 2 blocks west. What distance did Bob travel?

• 2 blocks
• 4 blocks
• 6 blocks
• 8 blocks

A car traveling in a northeasterly direction at a rate of 50 km/h represents which of the following?

• speed
• velocity
• acceleration
• deceleration

What is speed?

• how far you go
• how much distance is covered over a period of time
• how fast you accelerate
• the change in the location of a object

Tags

NGSS.MS-PS3-1

Which is correct?

• speed = distance x time
• speed = speed divided time
• speed = Distance divide time
• Speed = time x speed