Do Now

What is the net force?

• 10 N to the right

• 10 N to the left

• 130 N to the left

• 130 N to the right

Tags

NGSS.MS-PS2-2

These are ______ particles because they are tightly packed together.

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Put the liquids in order from most dense to least dense?

• 4, 3, 2, 1
• 1, 2, 3, 4
• 3, 4, 2, 1, 
• 4, 3, 1, 2

Tags

NGSS.MS-PS1-2

Which statement best describes a mixture?

• Two or more substances that can be easily separated

• A substance that chemically combines with another

• Two or more substances that cannot be easily separated

• A substance containing a single type of particle or atom

Evidence of a NEW substance formed from a chemical change, resulting in SOLID particles that form or separate out of a liquid is...

• Production of Heat or Light
• Production of a Precipitate
• Production of Gas

Tags

NGSS.MS-PS1-2

Evidence of a NEW substance formed from a chemical change is...

• Production of Gas
• Production of Heat and Light
• Production of a Precipitate 

Tags

NGSS.MS-PS1-2

Evidence of the release of energy during a CHEMICAL CHANGE is...

• Production of Precipitate
• Production of Gas
• Production of Heat or Light

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

According to Newton's Third Law, when one object exerts a force on another object, the second object also exerts an equal and opposite force. True or False?

• True

• False

• Not mentioned

• Partially True

Tags

NGSS.MS-PS2-1

When you walk down the hallway, what pushes back on your foot when your foot pushes on the ground?

• Friction

• The ground

• Air resistance

• Gravity

Tags

NGSS.MS-PS2-1

A car is sitting on top of a ramp. As the car rolls down the ramp, the potential energy of the car decreases. What happens to the potential energy as the car moves?

• It is lost as gravitational energy

• It is converted to kinetic energy

• It is destroyed as the car moves

• It is used to make the car slow down

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5