Motion

What does the term displacement mean?

• The direction of motion

• The distance traveled divided by time

• The change of position of an object

Which of the following is the closest match to the definition of motion?

• An objects change in position relative to a reference point
• The change in position of an object
• Constant speed

What is the definition of velocity?

• A force that opposes motion
• Uniform circular motion
• The speed of an object in a particular direction

Tags

NGSS.MS-PS3-1

What is the definition of speed?

• Distance/Time
• Change in velocity/Time
• A change in momentum

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

How is velocity different than speed?

• Speed opposes velocity
• Velocity is speed with a direction
• None of the answers are correct

Which of the following represents the equation for acceleration?

• a = ƒt/v
• a = Δt/f
• A = Λd/t
• a = Δv/t

Tags

NGSS.HS-PS2-1

An object traveling in a circular motion is always changing its ______ and ______.

• rotation, velocity
• direction, velocity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A force is an action exerted on a body in order to change the body's state of ______.

• Balance
• Being
• Proximity
• Motion

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A force that opposes motion between two surfaces that are in contact.

• Speed
• Velocity
• Friction
• Force

Tags

NGSS.MS-PS2-2

The force that opposes the motion of two surfaces that are in contact and are sliding over each other.

• Static Friction
• Kinetic Friction