Q2

Four metal cubes, each at a different starting temperature, are placed in contact with each other.

Which of the following describes the most likely flow of thermal energy in this situation?

• Cube #4 to Cube #2

• Cube #1 to Cube #2

• Cube #3 to Cube #4

• Cube #1 to Cube #3

Tags

NGSS.MS-PS1-4

Students are testing different materials to find the one that transfers the most heat energy. Identical containers, made of the different materials, were filled with hot water, and the temperature of the water was measured and recorded over time.

Based on the graph of the time and temperature data, which material was most effective at transferring thermal energy?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A ball rolls across the floor. Because of friction, the ball will eventually slow down and come to a stop. Which of the following is evidence of energy transfer resulting from the change in the motion of the ball?

• Different surfaces create different amounts of friction.

• The ball moves in the same direction as it rolls across the floor.

• Energy sets the ball in motion.

• The ball and the floor gain a small amount of heat energy.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A graph showing the kinetic energy of a 10 kg object at different speeds is provided.

Based on the information in the graph, we can predict that the kinetic energy of the object at 2 m/s would be–

• 12 Joules.

• 20 Joules.

• 38 Joules.

• 50 Joules.

Tags

NGSS.MS-PS3-1

List the steps of the scientific method

d

e

f

c

b

a

Form a hypothesis

Ask a question

Communicate results

Conduct experiment

Draw conclusions

Analyze results

Tags

NGSS.MS-LS1-5

Which of the following factors contributes most to the amount of energy required to change the temperature of a sample of water by 10C?

• The source of the sample of water

• The size of container holding the sample

• The initial temperature of the sample

• The amount of water in the sample

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Where is the coaster experiencing maximum kinetic energy?

• w

• x

• y

• z

Tags

NGSS.MS-PS3-1

mv² is the formula for

• Coca-cola

• KFC's original recipe

• kinetic energy

• speed

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

An investigation to determine which material can maximize heat energy transfer would most likely include which of the following?

• Hot water placed in containers made of different substances

• Ice cubes sealed in containers of various sizes

• Metal objects heated to a variety of temperatures

• Air temperature recorded at different times of day

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

You are playing on a swing. You are at the top of the backward arc and have just begun to move forward. As your distance from the ground decreases, your speed will

• increase

• decrease

• stay the same

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4