A student is creating a model of a concave lens. The diagram shows her incomplete model.

1) Which action would best complete her model?
A) The student should draw the light moving into the lens and then exiting in converging lines.
B) The student should draw the light moving into the lens and then exiting in lines that are spreading out.
C) The student should draw the rays of light moving into the lens and then exiting at right angles.
D) The student should draw the rays of light moving into the lens and then exiting in a straight path.

2) What type of wave carries the most energy?
A) Microwaves
B) Infrared Waves
C) Ultraviolet Waves
D) Radio Waves
3) Isabela creates a demonstration showing a sound echo. How could she demonstrate this?
A) She throws a rubber ball at a wall, and it bounces back to her.
B) She throws water at a wall, and it drips down the wall.
C) She throws an egg at a wall, and it breaks and falls to the floor.
D) She throws sand at a wall, and it hits the wall and falls to the floor.
A straight glass rod appears to bend when placed in a beaker of water, as illustrated in the diagram.
4) What is the best explanation of this phenomenon?
A) Light is reflected at the air-water interface.
B) Light travels faster in water than in air.
C) The water in the beaker is warmer than the air.
D) Light is refracted as it crosses the air-water interface.
5) Which statement best describes how light and lenses work together?
A) Lenses change the direction of light rays by bending them.
B) Lenses break up white light into the spectrum.
C) Lenses cause light rays to spread apart.
D) Lenses cause objects to appear larger.
6) A student is building a model of a lens that will spread light over the biggest space. Which best describes the type of model the student should make?
A) The student should make a convex lens model because it breaks light down into bands of color.
B) The student should make a concave lens model because it breaks light down into bands of color.
C) The student should make a convex lens model because it directs light away from the center of the lens.
D) The student should make a concave lens model because it directs light away from the center of the lens.

Dillon wonders if he can block the radio waves released by the remote control used to operate his radio-controlled car. He covers the remote control in different materials and tries to use it to operate his car. He records his observations in the table below.
7) Why does the remote control not work when covered with aluminum foil?
A) because the aluminum foil blocks the batteries
B) because the aluminum foil blocks the microwaves
C) because the aluminum foil blocks the radio waves
D) because the aluminum foil blocks the sound waves
8) Which of the following statements is true with regard to transverse and longitudinal waves?
A) Transverse waves have motion perpendicular to velocity, while longitudinal waves have motion parallel to velocity.
B) Both transverse waves and longitudinal waves have motion parallel to velocity.
C) Transverse waves have motion parallel to velocity, while longitudinal waves have motion perpendicular to velocity.
D) Both transverse waves and longitudinal waves have motion perpendicular to velocity.
9) A blue light is shined on objects X and Y. Object X appears to be blue, and object Y appears to be black. Which of the following is correct?
A) Object X absorbs blue light, and object Y reflects blue light.
B) Object X reflects blue light, and object Y absorbs blue light.
C) Object X must be black, and object Y must be blue.
D) Object X must be blue, and object Y must be black.
10) Which of the following statements about electromagnetic and mechanical waves is true?
A) Electromagnetic waves must travel through a medium, but mechanical waves do not require a medium.
B) Electromagnetic waves travel mostly through matter, and mechanical waves travel mostly through a vacuum.
C) Mechanical waves must travel through a medium, but electromagnetic waves do not require a medium.
D) Mechanical waves sometimes travel through a vacuum, and electromagnetic waves sometimes travel through matter.
11) What do radio waves, microwaves, X-rays, and gamma rays all have in common?
A) They all have the same wavelength.
B) They are electromagnetic waves.
C) They are detected in the same way.
D) They store the same amount of energy.
12) Carla's favorite ball is bright blue when it is outside in the direct sunlight. Inside, the ball appears to be almost green. Why does Carla's ball seem to change colors?
A) Color is determined by the density of an object, and Carla's ball became more dense when she went inside out of the sunlight.
B) Color is determined by the size of an object, and Carla's ball lost air while being played with, so it was smaller when she went inside.
C) Color is determined by the wavelength of light reflected or absorbed by the object, and the light changed when Carla went inside.
D) Color is determined by the temperature of an object, and the temperature changed when Carla went inside out of the sunlight.
13) On a guitar, the longest string vibrates slowly, and the shortest string vibrates very quickly. What conclusion can be made about the sound that each string makes?
A) The long string makes a loud sound and the short string makes a soft sound, because things that are longer make louder sounds.
B) The long string makes a soft sound and the short string makes a loud sound, because things that are longer make softer sounds.
C) The long string makes a high-pitched sound and the short string makes a low-pitched sound, because things that vibrate slowly have a higher pitch.
D) The long string makes a low-pitched sound and the short string makes a high-pitched sound, because things that vibrate slowly have a lower pitch.
14) In which of the following substances does a beam of light travel the fastest?
A) air
B) glass
C) plastic
D) water
15) What would cause a beam of light to increase in wavelength and bend away from the normal?
A) Passing from a round glass into a square glass
B) Passing from air into glass
C) Passing from a water faucet into a bathtub of water
D) Passing from glass into air
16) When the pitch of a wave increases, the wavelength of the wave:
A) doubles
B) increases
C) decreases
D) stays the same
17) What does the amplitude of a sound wave depend on?
A) pitch
B) loudness
C) frequency
D) wavelength

The pictures show four wavelengths of sound.
18) Which line shows the lowest frequency?
A) W
B) X
C) Y
D) Z

19) What type of lens is shown in the picture?
A) This is a convex lens, but light rays passing through a convex lens do not refract and spread apart.
B) This is the structure and function of a concave lens.
C) This shows light rays converging to a focal point, but the lens shown is a concave lens.
D) This is a convex lens which causes light rays to refract and converge toward a focal point.
20) Mac and Suzanne cut holes in the bottom of two cups and connect them with a string. When Mac whispers into one cup, Suzanne can hear him through the other. What is the best reason to explain why this happens?
A) Sound waves can travel great distances.
B) Sound waves from whispering have a higher frequency.
C) Sound waves travel better through solids than gases.
D) Sound waves produce an echo.

The table shows the densities of four substances.
21) Based on this information, in which substance is the speed of sound waves likely the greatest?
A) air
B) water
C) steel
D) copper
22) Many devices use the electromagnetic spectrum including radios, cell phones, and medical equipment. When designing a device using the electromagnetic spectrum, which type of waves will provide the device with the most energy?
A) waves that have shorter wavelengths and higher frequencies
B) waves that have longer wavelengths and lower frequencies
C) waves that have shorter wavelengths and lower frequencies
D) waves that have longer wavelengths and higher frequencies
23) Which of the following is NOT a type of radiation from the Sun?
A) ultraviolet waves
B) radio waves
C) x-ray waves
D) television waves
24) Which of the following is true of frequency and volume?
A) The frequency is not affected as the volume of sound increases.
B) The frequency increases as the volume of sound increases.
C) The frequency decreases as the volume of sound increases.
D) The frequency speeds up as the volume of sounds increases.

25) Which image shows the shortest wavelength?
A) W
B) X
C) Y
D) Z
26) How is white light different from the rest of the electromagnetic spectrum?
A) White light is invisible to the human eye.
B) White light has a spectrum of visible colors.
C) White light can alter its wavelength.
D) White light can travel through empty space and matter.

27) Which color has the highest energy?
A) Red
B) Orange
C) Blue
D) Violet
28) What do waves transfer?
A) matter
B) particles
C) water
D) energy

Can someone plzz tell me the answers, I really need to get this done today?

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APD cant stop ts car GSP cant stop it either I get mad and blow my heater.