Final Exam Review

A high-speed train travels with an average speed of 227 km/hr. The train travels for 2 hrs. How far does the train travel?

• 400 km
• 300 km
• 500 km
• 454 km

A cross-country runner runs 10 km in 40 minutes. What is his average speed?

• 30 km/min

• 0.25 km/min

• 4 km/min

• 400 km/min

What does the slope of a distance vs. time graph tell you?

• The slope indicates the speed or velocity of the object.
• The slope shows the distance traveled by the object.
• The slope represents the time taken for the journey.
• The slope indicates the direction of the object's movement.

Which time interval has the greatest speed?

• 0-1 s

• 1-2 s

• 3-4 s

• 4-6 s

Tags

NGSS.MS-PS3-1

What is true about a car with constant velocity?

• It has zero acceleration

• It has positive acceleration

• It has negative acceleration

• The car is changing direction

A person walks 3 miles north, turns, and walks 2 miles east. Calculate the person’s distance traveled and their displacement.

• Distance traveled: 4 miles, Displacement: 2 miles
• Distance traveled: 3.6 miles, Displacement: 5 miles

• Distance traveled: 5 miles, Displacement: 3.61 miles

• Distance traveled: 5 miles, Displacement: 3.61 miles NE

The horses on a carousel or merry-go-round are accelerating because ____.

• they are being pulled by a motor.
• they are jumping up and down.
• they are changing direction while moving in a circle.
• they are moving faster than before.

At what point is the rate of change of velocity the greatest?

• Segment C

• Segment D

• Segment A

• Segment B

Tags

NGSS.MS-PS3-1

Which of the laws of motion states, “To every action there is an equal but opposite reaction”?

• Newton's Third Law of Motion
• Law of Universal Gravitation
• Newton's Second Law of Motion
• Newton's First Law of Motion

Tags

NGSS.MS-PS2-1

When a car traveling at 30 m/s hits the gas pedal, it speeds up to 65 m/s in 3.5 sec. What is the car’s acceleration during that time?

• 5 m/s²
• 15 m/s²
• 20 m/s²
• 10 m/s²