7th Grade Physics IQWST

3

You have a large mug with hot tea and a small mug with ice tea. Which mug has more thermal energy? Explain your answer.

1

A cold can of soda is taken out of the refrigerator. It slowly warms up until it is at room temperature. Once the soda has warmed up, it has more thermal energy than it had in the refrigerator. Where did this additional thermal energy come from?

1

What energy type is represented in the picture?

2

Which type of energy conversion is involved when the arrow is released?

3

What are the factors that influence the amount of elastic energy in an object? Select all that are correct.

1

As an object falls, what happens to its gravitational energy?

1

Which of the following does not represent energy being converted?

2

At which point on the roller coaster will the car have the greatest amount of kinetic energy? Explain why.

4

At which point on the roller coaster will the car have the greatest amount of gravitational energy? Explain why.

4

What energy type(s) is present at point Z? Explain your answer.

2

Which of the following types of energy is potential energy? More than one answer is possible.

6

A student drops a ball from 5 feet above the ground. After bouncing once, it only reaches a maximum height of 4 feet above the ground. Use energy terms to explain why the ball did not reach its original height after bouncing once.

4

Miguel claims that as a ball falls, it loses potential energy. Izzy claims that as a ball falls, it gains kinetic energy. Can both students be correct? Describe the evidence which would support either student.

2

In 1908, a meteorite impact occurred in Russia. The dashed line indicates the area in which the fireball that hit the surface of the Earth flattened millions of trees.

Part 1: Which characteristic of the meteorite are supported by the data in the map?

4

Part 2: Explain your choice using the map data as evidence.

2

Hydropower plants are a type of hydroelectric plant. Here are some steps in the process of generating electricity at these types of plants.
Energy is stored in water found in reservoirs located at low elevations.
The water is pumped to higher elevations.
The water is then released, and then falls due to gravity.
Falling water enables turbines to turn, increasing energy and generating an electrical current.

Part 1: Which change would decrease the amount of potential energy in the hydropower plant system?

4

Part 2: Explain your answer.

2

The diagram shows a type of ramp called a half-pipe that skateboarders and snowboarders use to perform high jumps and tricks in the air.
Part 1: How does the energy compare when the skateboarder is on the bottom of the ramp versus when the skateboarder is in the air performing a trick?

6

Part 2: In 5 sentences or more, explain your answer.

1

Energy can never be created or destroyed, but it's just transferred or transformed.

1

Ms. Bowen will have less kinetic energy than Anija.

1

Winter will have more gravitational energy on a 20 foot cliff than DaMond on a 10 foot cliff.

1

You have a large mug with hot tea and a small mug with ice tea. Which mug has more thermal energy? Explain your answer.

A cold can of soda is taken out of the refrigerator. It slowly warms up until it is at room temperature. Once the soda has warmed up, it has more thermal energy than it had in the refrigerator. Where did this additional thermal energy come from?

What energy type is represented in the picture?

Which type of energy conversion is involved when the arrow is released?

What are the factors that influence the amount of elastic energy in an object? Select all that are correct.

As an object falls, what happens to its gravitational energy?

Which of the following does not represent energy being converted?

At which point on the roller coaster will the car have the greatest amount of kinetic energy? Explain why.

At which point on the roller coaster will the car have the greatest amount of gravitational energy? Explain why.

What energy type(s) is present at point Z? Explain your answer.

Which of the following types of energy is potential energy? More than one answer is possible.

A student drops a ball from 5 feet above the ground. After bouncing once, it only reaches a maximum height of 4 feet above the ground. Use energy terms to explain why the ball did not reach its original height after bouncing once.

Miguel claims that as a ball falls, it loses potential energy. Izzy claims that as a ball falls, it gains kinetic energy. Can both students be correct? Describe the evidence which would support either student.

In 1908, a meteorite impact occurred in Russia. The dashed line indicates the area in which the fireball that hit the surface of the Earth flattened millions of trees.Part 1: Which characteristic of the meteorite are supported by the data in the map?

Part 2: Explain your choice using the map data as evidence.

Part 2: Explain your answer.

The diagram shows a type of ramp called a half-pipe that skateboarders and snowboarders use to perform high jumps and tricks in the air.Part 1: How does the energy compare when the skateboarder is on the bottom of the ramp versus when the skateboarder is in the air performing a trick?

Part 2: In 5 sentences or more, explain your answer.

Energy can never be created or destroyed, but it's just transferred or transformed.

Ms. Bowen will have less kinetic energy than Anija.

Winter will have more gravitational energy on a 20 foot cliff than DaMond on a 10 foot cliff.

Brandi's hairband has more elastic energy than Kamiya's because it's twisted in her hair more times.

In 1908, a meteorite impact occurred in Russia. The dashed line indicates the area in which the fireball that hit the surface of the Earth flattened millions of trees.

Part 1: Which characteristic of the meteorite are supported by the data in the map?

The diagram shows a type of ramp called a half-pipe that skateboarders and snowboarders use to perform high jumps and tricks in the air.
Part 1: How does the energy compare when the skateboarder is on the bottom of the ramp versus when the skateboarder is in the air performing a trick?