Types of Motion

Acceleration of an object happens when it ________

• slows down

• speeds up

• changes direction

• all of these

Tags

NGSS.MS-PS2-2

When a car goes around a corner at 20 mph, why do we say it accelerates?

• The car is accelerating because the velocity is constant

• The car accelerates because it is going 20 mph

• Cars always accelerate when they are in motion

• The car is accelerating because it is changing direction

Which of the following best describes the velocity of an object?

• 100 mph south

• 65 miles

• 20 mph

• 40 m/s²

What is the difference between the velocity and the speed of an object?

• Velocity is a change in distance over time, speed is the change in direction over time

• Velocity has a direction associated with it, while speed has no specific direction

• Velocity has no direction associated with it, while speed has a specific direction

• Velocity is the change in speed over time, while speed is the change in distance over time

A dog runs on the sidewalk at 9 mi/hr

• speed

• velocity

• acceleration

Tags

NGSS.MS-PS3-1

Which of the following words describe an unbalanced force?

• constant

• at rest

• increasing speed

Tags

NGSS.MS-PS2-2

Which of the following words describes a balanced force?

• starts

• constant

• changes

Change in motion

• balanced force

• unbalanced force

Tags

NGSS.MS-PS2-2

Net Force = 0

• change in motion

• no change in motion

Tags

NGSS.MS-PS2-2

Net Force = 0

• balanced force

• unbalanced force