Force, Motion, Speed, Velocity, Acceleration

Speed in a given direction

• speed

• velocity

• acceleration

• force

The rate at which velocity changes.

• speed

• velocity

• acceleration

• force

A push or pull

• speed

• acceleration

• velocity

• force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

An object at rest stays at rest and an object in motion stays in motion unless acted on by an unbalanced force.

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Newton's Fourth Law

Describe the acceleration of the bus at Section 1

• negative

• constant

• not moving

• positive

Acceleration is (a)  

• A change in velocity

• The rate of a moving object

• The direction of an object

• An object at rest

Tags

NGSS.MS-PS2-2

If a car's speed-time graph is a horizontal line, what does this indicate about the car's motion?

• The car is accelerating.

• The car is decelerating.

• The car is moving at a constant velocity.

• The car is stationary.

Tags

NGSS.MS-PS3-1

The rate at which speed or direction (or both!) change over time is known as ​ (a)   , while ​ (b)   is the speed of an object in a particular direction.

• acceleration

• velocity

Tags

NGSS.MS-PS2-2

Which of the following statements is true about acceleration?

• Acceleration is always positive.

• Acceleration is the rate of change of speed.

• Acceleration is the rate of change of velocity.

• Acceleration is the rate of change of distance.

What is the acceleration of an object if a net force of 20 N is applied to a 4 kg object?

• 5 m/s²

• 4 m/s²

• 20 m/s²

• 80 m/s²

Tags

NGSS.MS-PS2-2