Sem 1 Final Exam Review 24-25

Miles pours some iced tea into a glass. When he puts the iced tea in the glass, the energy of the glass decreases. What must be true of the energy of the iced tea?

• Miles pours some iced tea into a glass. When he puts the iced tea in the glass, the energy of the glass decreases. What must be true of the energy of the iced tea?

• Its energy stays the same while the energy of the glass decreases.

• Its energy decreases while the energy of the glass decreases.

• It is impossible to know without data on the number of molecules in each object.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

At room temp, 2 substances are liquid. The same amount of energy is transferred out of both substances. Now, substance 1 changed phase but 2 didn't. How are they different? Substance 1 has a ...

• stronger attraction between its molecules than Substance 2. Its molecules now move in place.

• stronger attraction between its molecules than Substance 2. Its molecules now move away from each other.

• weaker attraction between its molecules than Substance 2. Its molecules now move in place.

• weaker attraction between its molecules than Substance 2. Its molecules now move around each other.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Jasper's bicycle is made of aluminum. When are the aluminum molecules in his bicycle moving? The aluminum molecules are . . .

• always moving

• never moving

• only moving when Jasper is riding his bicycle.

• only moving when Jasper is not riding his bicycle.

At room temp, both substances are liquids. The same amount of energy was transferred into both substances. Only the pink one changes phase. How is the pink one different from the green one? The pink substance has a ...

• stronger attraction between its molecules than the green substance. Its molecules move around each other.

• weaker attraction between its molecules than the green substance. Its molecules now move in place.

• weaker attraction between its molecules than the green substance. Its molecules now move away from each other.

• stronger attraction between its molecules than the green substance. Its molecules now move away from each other.

Tags

NGSS.MS-PS1-4

First, the water is a liquid. Then, energy was transferred out of the substance, and the water changed phase. What happened to the movement of the water molecules? After the phase change, the water molecules moved ...

• slower and started moving in place.

• slower and started moving around each other.

• faster and started moving away from each other.

• faster and started moving around each other.

Tags

NGSS.MS-PS1-4

At room temp, both substances are liquid. When the same amount of energy was transferred out of both substances, only one changed phase while the other didn't. Which substance changed phase, and how did it change?

• Substance R changed phase because the weak attraction between molecules let them move faster. Its molecules now move around each other.

• Substance Q changed phase because the strong attraction between molecules made their movement slower. Its molecules now move in place.

• Substance R changed phase because the attraction was able to overcome the slower molecules. Its molecules now move away from each other

• Substance Q changed phase because the attraction of the molecules was able to overcome their slower movement. Its molecules now move in place.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Eli and Jen are camping and have potatoes to eat. Jen put her potato in the campfire for a while, but Eli didn't. Now Jen's potato has a high temperature. What's the difference between the molecules of the two potatoes?

• The molecules of Jen’s potato are moving and the molecules of Eli’s potato are not moving.

• The molecules of Eli’s potato are smaller than the molecules of Jen's potato.

• The molecules of Jen's potato are moving faster than the molecules of Eli’s potato.

• There is no difference because both potatoes are made of the same type of molecules.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The medicine has molecules that are moving around each other. The doctor needs to slow down the molecules to cause a phase change. How will he do this & how will it affect the medicine? He transfers energy ...

• out of the medicine until it is a liquid.

• out of the medicine until it is a solid.

• into the medicine until it is a gas

• into the medicine until it is a liquid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How is the kinetic energy of molecules changing when the molecules move faster? The kinetic energy . . .

• is increasing.

• is decreasing

• depends on the molecules

• is not changing.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

At room temperature, both foods are liquids. The same amount of energy was transferred into both substances. Later, one had changed phase while the other hadn't. Which food changed phase, and how did it change?

• The sour food changed because the molecules were able to move fast enough to overcome the attraction between them. Its molecules now move in place.

• The sweet food changed because the strong attraction between molecules made their movement slower. Its molecules now move around each other.

• The sweet food changed because the molecules were able to move fast enough to overcome the attraction between them. Its molecules now move away from each other.

• The sour food changed because the weak attraction between molecules let them move faster. Its molecules now move away from each other.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5