1D Motion Test Review

One of the physics units for measuring distance is m/s

• True

• False

One of the physics units for velocity is m

• True

• false

Tags

NGSS.MS-PS3-1

In physics speed is a scalar quantity

• true

• false

In physics velocity is a scalar quantity

• True

• false

speed is

• a measure of how fast something is moving

• always measured in terms of a unit of distance divided by a unti of time

• the distance covered per unit of time

• all of the above

• none of the above

When a car's acceleration is negative, what is happening to the car's motion?

• the car slows down

• the car speeds up

• the car travels at constant speed

• the car remains at rest

Tags

NGSS.HS-PS2-1

Acceleration is defined as

• the rate of change of distance

• the rate of change of displacement

• the rate of change of time

• the rate of change of velocity

Tags

NGSS.HS-PS2-1

Which one of the following situations represents acceleration?

• increasing speed

• decreasing speed

• changing directions

• all options

• none

Tags

NGSS.HS-PS2-1

Suppose you are in a car that is going around a curve. The speedometer reads a constant 30 miles per hour. Which of the following is NOT true?

• You and the car are accelerating

• your direction (position) is constant

• your speed is constant

• your direction (position) is changing

Tags

NGSS.HS-PS2-1

In the absence of air resistance, as an object falls freely its

• velocity increases

• acceleration increases

• both

• neither

Tags

NGSS.HS-PS2-1