Honors First Semester Final Review

Speeding up, slowing down, and changing direction is best described as

• Velocity

• Acceleration

• Displacement

• Speed

Tags

NGSS.MS-PS2-2

When velocity changes by the same amount over each time interval, acceleration is

• Constant

• Increasing

• Decreasing

• Zero

Santa Clause walks 6.2 km East in 3 hours and then 4.8 km West in 2.5 hours then stops. What is the man's displacement for the whole journey?

• 1.4 km East

• 1.4 km West

• 11 km East

• 11 km West

Which of the following indicates velocity? (Choose ALL that apply.)

• 14 m/s South

• 28 miles per hour from Los Angeles to Catalina Island

• 40 cm/min

• 80 km going from New York toward New Jersey

What is occurring in segment C of this graph?

• Constant speed

• Acceleration/

  speeding up

• Deceleration/slowing down

• Stopping

Tags

NGSS.MS-PS3-1

What does the slope of a velocity versus time graph tell you about an object?

• The object's speed

• The object's acceleration

• The object's displacement

• The object's direction

An object moves away from a motion detector with an increasing speed. Which graph best represents the motion of the object?

• Graph B: A straight line with a constant slope

• Graph A: A curve with increasing slope

• Graph D: A horizontal line

• Graph C: A curve with decreasing slope

Tags

NGSS.MS-PS3-1

A sled maintains a speed of 80 mph as it rounds a curve on the track. Is the sled accelerating?

• Yes, because it is changing direction

• No, because the speed is constant

• Yes, because it is slowing down

• No, because it is on a straight path

Tags

NGSS.MS-PS2-2

Comet walks 6.2 km East in 3 hours and then 4.8 km West in 2.5 hours then stops. What is Comet's average speed for the whole journey?

• 0.5 km/hr

• 2 km/hr

• 2.8 km/hr

• 5.5 km/hr

Select ALL that apply: Which of the following can change acceleration?

• A; the brake pedal

• B; the gas pedal

• C; the steering wheel

• None