PS Chapter 12 STUDY

What is required for an object to start moving, stop moving, speed up, slow down, or change directions?

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

The sum of all the forces acting on an object.

Tags

NGSS.MS-PS2-2

When forces are balanced, it means that net force =

Unbalanced forces acting on an object cause the object to

• move

• stop

• accelerate

• stay at rest

Tags

NGSS.MS-PS2-2

When the net force acting on an object is zero, the object will

• stop moving

• speed up

• not accelerate

• slow down

Which of the following is NOT one of the four main types of friction?

• rolling friction

• static friction

• fluid friction

• sliding friction

• standing friction

The constant velocity of a falling object when the force of air resistance equals the force of gravity.

A falling object's motion after it is given a forward velocity. (also known as 2D motion)

Tags

NGSS.HS-PS2-4

Which is true of an object dropped vs. an object thrown horizontally at the same time?

• the object dropped will reach the ground first

• the object thrown forward will reach the ground first

• they will reach the ground at the same time

• only the object dropped is in free fall

Tags

NGSS.MS-PS2-4

A force that acts between any two masses. It causes objects to accelerate downward.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5