8th First Semester Final 24/25

Based on the graph below, how would you describe the relationship between the mass of a car and its kinetic energy?

• As the mass of a car increases, its kinetic energy increases.

• As the mass of a car increases, its kinetic energy decreases.

• As the mass of a car decreases, its kinetic energy increases.

• There is no clear relationship between mass and kinetic energy.

Tags

NGSS.MS-PS3-1

Jeremiah puts his spoon into a helping of fresh, hot, mashed potatoes as shown in the figure. Which process takes place when the two objects come together?

• The temperature of the spoon increases, but its thermal energy does not change.

• Thermal energy is transferred from the warmer mashed potatoes to the cooler spoon through convection.

• The thermal energy of both the mashed potatoes and the spoon increases as energy in the form of heat is transferred between them.

• Thermal energy is transferred from the warmer mashed potatoes to the cooler spoon through conduction.

Tags

NGSS.MS-PS1-4

A large spring is stretched horizontally between two people. One person wiggles the spring up and down at one end. The up-and-down vibration then moves along the spring to the other person. Which of the following types of wave is created in the spring?

• compressional

• longitudinal

• sound

• transverse

Tags

NGSS.MS-PS4-1

Which of the following statements would Omar use to describe what occurs when thermal energy is removed from a liquid?

• The kinetic energy of the molecules decreases, and they slow down.

• The kinetic energy of the molecules increases, and they speed up.

• The molecules within the liquid stop moving.

• The liquid becomes a gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Three roller coaster cars moving on the track. Assuming each car has an identical mass and all three cars are moving at the same speed, which car has the most kinetic energy?

• Car A

• Car B

• Car C

• Kinetic energy is equal for all three cars.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Compare Waves A and Wave B. Which description correctly describes the waves?

• Wave A has twice the energy because it has a frequency twice as large.

• Wave B has twice the energy because it has an amplitude twice as large.

• Wave A has twice the energy because it has an amplitude twice as large.

• Waves A and B have the same amount of energy because they have the same amplitude.

Tags

NGSS.MS-PS4-1

Alfred removes a pitcher of chilled lemonade from a 5°C refrigerator and leaves the pitcher in a 20°C room for several hours. Which of the following statements best describes the flow of energy during this time?

• Cold energy flows from the lemonade to the room until the room is colder than the lemonade.

• Heat energy flows from the room to the lemonade until the lemonade is warmer than the room.

• Cold energy flows from the lemonade to the room until the lemonade and the room are the same temperature.

• Heat energy flows from the room to the lemonade until the lemonade and the room are the same temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Students placed two identical cars, with equal masses, on wooden ramps. They allowed the cars to roll down each ramp. This experiment was most likely designed to test which hypothesis?

• Ramps made of wood increase the speed of cars.

• The height of the ramp affects the speed of the car.

• The speed of the car is determined by the size of the tires.

• Plastic cars travel faster than metal cars.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which of the following best describes the relationship between frequency and wavelength of electromagnetic waves?

• If frequency remains constant, then wavelength increases.

• If frequency increases, then wavelength decreases.

• If wavelength decreases, then frequency decreases.

• If wavelength remains constant, then frequency increases.

Tags

NGSS.HS-PS4-1

A heater is placed in a room. Which diagram correctly illustrates the movement of air as it heats the room?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-3