G7 Q2 Science Practice Assessment

Front

How is ultraviolet light different from the light emitted by a flashlight?

Back

Ultraviolet light is invisible to the human eye.

Front

What property is used to divide the various colors in the spectrum of white light? (7.P.10.1) Options: speed, wavelength, density, temperature

Back

wavelength

Front

What is the primary difference between the colors of visible light? Options: the brightness of each color, the heat produced by each color, the wavelength of each color, the speed of each color in empty space

Back

the wavelength of each color

Front

Which of the following materials would sound travel fastest through? (7.P.10.3) Options: a sponge, a beaker of water, the air in the room, a wooden desk

Back

a wooden desk

Front

Which of the following materials would light travel fastest through? (7.P.10.3) Options: air, plastic, water, light waves travel through all matter at the same speed

Back

air

Front

How does the speed of light in water compare to its speed in air?

Back

The speed is slower in water than in air because the molecules are closer together.

Front

Which of the following could result from heat being transferred to a substance?

Back

The substance changes from a liquid to a gas.

Front

In which state of matter do the particles have the most heat? (7.P.11.1) Options: in both a solid and liquid, in a liquid, in a gas, in a solid

Back

in a gas

Front

If the temperature of an object is 30° C, which of the following temperatures would indicate the most heat that was removed from this object? 40°C, 30°C, 20°C, 10°C

Back

10°C

Front

What happens when Alexander stretches a rubber band and then releases it?

Back

The potential energy stored in the stretched rubber band changes to kinetic energy.