Lesson 1 Vocabulary

When a force in one direction is greater than another force in an opposite direction those are

• acceleration

• speed

• unbalanced forces

• balanced forces

Tags

NGSS.MS-PS2-2

When the drag forces are increased, an object will fall ___________.

• more slowly

• faster

• roughly at the same speed

• rapidly and then slow down

_____ is kind of friction which occurs between air and another object.

• velocity

• drag

• friction

• speed

The "invisible", non-contact force that draws objects toward each other is called

• motion

• force

• drag

• gravity

Tags

NGSS.MS-PS2-4

Forces going in opposite directions but EQUAL in size are

• balanced forces

• unbalanced forces

• speed

• velocity

Tags

NGSS.MS-PS2-1

The tendency of an object in motion to stay in motion or of an object at rest to stay at rest.

• force

• inertia

• speed

• acceleration

A change in an object's position is called

• motion

• acceleration

• friction

• inertia

Tags

NGSS.MS-PS2-2

The speed and direction of an object is called

• speed

• acceleration

• gravity

• velocity

Friction is a force between surfaces that...

• slow down objects

• stops objects from moving

• a change in speed

• a push or pull

Tags

NGSS.MS-PS2-2

Force is a push or pull.

• True

• False

Tags

NGSS.MS-PS2-2