Physical Science Eoy

Which model shows the structure and movement of particles in a solid?

• Model 1

• Model 2

• Model 3

• Model 4

A group of students is investigating.

What step should the students take next in the investigation to increase the strength of the motor?

• Reduce the size of the axle running through the center of the motor.

• Increase the number of coils of wire within the two sections of the motor.

• Decrease the voltage of the power source being used to operate the motor.

• Place the permanent magnets and coils of wire farther apart inside the motor.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

A student is planning an investigation in which different modes of heat transfer will be used to heat a thermometer. The diagram shows the setup used to conduct the first part of the investigation.

In this setup, the thermometer is being heated by conduction and convection. How should the student change the setup to heat the thermometer by using only radiation?

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Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A student is drawing a diagram of a light ray as it enters a pane of transparent glass.

Which of these shows the correctly completed diagram?

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Tags

NGSS.MS-PS4-2

The three jars show the movement of particles in three states of matter.

Dry ice is solid carbon dioxide. As dry ice is heated, it goes directly from a solid to a gas through a process called sublimation. Which sequence of jars shows the change in the motion of particles of dry ice as it sublimes?

• .jar P to jar Q

• jar P to jar R

• jar Q to jar R

• jar R to jar P

Tags

NGSS.MS-PS1-4

A force diagram for a downhill skier is shown.

Which statement is a valid description and explanation of the skier’s motion based on evidence from the diagram?

• The skier’s speed decreases going down the hill because forces F1 and F2 are balanced and acting perpendicular to the direction of the velocity, causing the skier to speed up.

• The skier’s speed increases going down the hill because forces F1 and F2 are balanced and acting perpendicular to the direction of the velocity, causing the skier to slow down.

• The skier’s speed increases going down the hill because forces F3 and F4 are unbalanced, with F3 acting in the same direction as the velocity, causing the skier to speed up.

• The skier’s speed decreases going down the hill because forces F3 and F4 are unbalanced, with F4 acting in the opposite direction of the velocity, causing the skier to slow down.

Tags

NGSS.MS-PS2-2

A student is investigating how a negatively charged rubber rod affects how charges are distributed on two stainless steel spheres that are touching each other. A diagram showing two steps of the investigation is shown.

Which diagram for step 2 correctly predicts the distribution of charges on the stainless steel spheres?

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Tags

NGSS.MS-PS2-3

The graph shows the velocity of a moving train over time.

During which two intervals of time was the train moving with a constant, positive acceleration?

• 0–5 minutes and 10–15 minutes

• B. 5–10 minutes and 15–25 minutes

• 10–15 minutes and 25–30 minutes

• 15–20 minutes and 30–35 minutes

Tags

NGSS.MS-PS3-1