Unit 2

What is the energy transformation of the object in the picture?

• Chemical--> electromagnetic--> sound--> light

• Chemical--> electrical--> light

• Electric--> chemical--> light

• Chemical--> light

Tags

NGSS.MS-PS3-5

Potential and kinetic energy change as the ball bounces. Why does it stop bouncing?

• The energy is transformed to potential energy.

• The energy is transformed to heat and sound energy as the ball hits the ground.

• The mass is too small.

• Gravity pulls on the ball. This energy is greater than the mass of the ball.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Does this object have energy?

• No it is not boiling.

• Yes, it has thermal energy.

• No, it has atoms of hydrogen and oxygen.

• Yes, it has evaporated so there is less mass.

Tags

NGSS.MS-PS1-4

Select the electron.

Tags

NGSS.MS-PS1-1

Label the PTOE correctly.

a

b

c

d

Metalloids

Metals

Non-metals

One more non-metal

This illustration is a/an _____________

• compound

• element

• mixture of elements

• mixture of elements and compounds

Tags

NGSS.MS-PS1-1

Select the orbital.

Select the subatomic particle that has a mass of 1 AMU.

Tags

NGSS.MS-PS1-1

Select the neutron.

Tags

NGSS.MS-PS1-1

Select the proton.

Tags

NGSS.MS-PS1-1