2024 2nd semester 1/3

Two glasses of water have drops of dye added to them at the same time. After a short time the results are shown in the picture below. Which of the glasses will the dye spread the fastest.

• warm

• cold

Tags

NGSS.MS-PS1-4

Three identical brass balls are dropped from different heights and fall with different speeds. Select the ball that had the largest

• v

• 2v

• 3v

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is happening in this interaction?

• The red ball is transferring its kinetic energy to the blue ball and the blue ball is transferring its kinetic energy to the red ball (kinetic energy is exchanged)

• The red ball is transferring its mass to the blue ball and the blue ball is transferring its mass to the red ball 

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS2-1

The image below is a freely swinging pendulum. Why doesn't this pendulum swing back and forth forever?

• Kinetic energy is transferred as thermal energy to the surroundings.

• Potential energy is transferred to the surroundings.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS1-4

The image below shows a freely swinging pendulum. What position of the ball has the most kinetic energy?

• a

• b

• c

• d

• e

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

Where is the elastic potential energy stored when a spring is stretched or compressed from it's original (rest) position?

• In the spring

• In the magnetic fields

• In the electric fields

Potential energy in a spring, magnetic field, or electric field will be transferred to what type of energy when released and allowed to move ? 

• More potential energy

• Kinetic energy

• Nothing will happen

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

If we have negative electric field interacting with another negative electric field and we bring these two fields closer together what is happening to the potential energy ? 

• Increases

• Decreases

• Stays the same

Tags

NGSS.MS-PS3-2

Select which graph best shows what would happen to the potential energy if two similar charges (++ or --) are kept at the same distance, but their charges are increased/decreased?

• a

• b

• c

Tags

NGSS.MS-PS2-3

Select which graph best shows what would happen to the potential energy if two opposite charges (+- or -+) are brought together, and their charges stay the same?

• a

• b

• c

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-5