Physical: Standard 3.1- Energy, work, power

Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?

• Copper
• Carbon Steel
• Zinc
• Stainless Steel

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If you leave two objects in the sun for the same amount of time, one with a high specific heat, one with a low specific heat, which object will have a higher temp?

• They are the same temperature

• The higher specific heat is hotter.

• The lower specific heat is hotter.

Tags

NGSS.MS-PS1-4

When holding a cup of ice water, your warm hand becomes cold. How does the heat transfer?

• From the cold cup to your hand
• From the cold cup to the warm air
• From the ice to your hand
• From your warm hand to the cold cup.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How do molecules at warm temperatures differ from molecules at cool temperatures? 

• a.  At warm temperatures, molecules move around more
• b.  At warm temperatures, molecules grow in siz
• c.  At warm temperatures, molecules exchange electrons more easil
• d.  At warm temperatures, molecules combine with each other more easil

Tags

NGSS.MS-PS1-4

When a popsicle melts, the particles in the popsicle _____.

• absorb thermal energy and speed up as they change from solid to liquid

• there are no particles in popsicles

• release thermal energy and slow down

• stay the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Potential energy depends on

• mass and height

• height and speed

• mass and speed

• height and force

Tags

NGSS.MS-PS3-2

When a roller coaster is at the top of a hill it has

• high potential energy

• high kinetic energy

• low potential energy

• equal amounts of kinetic and potential energy

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

If all objects are moving as the exact same speed, which would have the greatest kinetic energy?

• tennis ball

• football

• notebook

• box of 20 textbooks

Tags

NGSS.MS-PS3-1

Explain what happens to the potential energy of a rock as it falls off the side of a cliff.

• The kinetic energy decreases as the potential energy increases.
• The kinetic energy decreases as the potential energy decreases.
• The potential energy decreases as the kinetic energy increases.
• The potential energy decreases as the kinetic energy decreases. 

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

I am holding a balloon that is full of air, the balloon has

• kinetic energy

• potential energy

Tags

NGSS.MS-PS3-2