Unbalanced Forces

Define force?

• Nonmoving objects on Earth’s surface.

• A force that appears whenever two objects touch each other;

  opposes motion between two surfaces in contact.

• Push/pull on an object; anything that causes the shape or motion of an object to change; forces cause a change in speed and direction.

• The force of attraction between objects that is due to mass.

Define gravity?

• Nonmoving objects on Earth’s surface.

• A force that appears whenever two objects touch each other;

  opposes motion between two surfaces in contact.

• Push/pull on an object; anything that causes the shape or motion of an object to change; forces cause a change in speed and direction.

• The force of attraction between objects that is due to mass.

Tags

NGSS.MS-PS2-4

Which are 2 types of forces?

• jedi and Mandalorian

• contact and distant forces.

• direction and speed

• potential and kinetic

Tags

NGSS.MS-PS2-4

Which of the following are distant forces?

• inertia

• gravity

• magnetic

• electric

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Only 1 force can act on a object at a time.

• yes

• no

Tags

NGSS.MS-PS2-2

A force can change the shape of a object.

• yes

• no

Define friction?

• Nonmoving objects on Earth’s surface.

• A force that appears whenever two objects touch each other;

  opposes motion between two surfaces in contact.

• Push/pull on an object; anything that causes the shape or motion of an object to change; forces cause a change in speed and direction.

• The force of attraction between objects that is due to mass.

Tags

NGSS.MS-PS2-2

Friction is an example of a contact force between two surfaces?

• true

• false

You resist gravity with a force in the opposite direction.

• true

• false

Tags

NGSS.MS-PS2-4

The SI unit used to express force is _____________ .

• Joules (J)

• Watts (W)

• Grams (G)

• Newton (N)