Forms of ENERGY

The toy oven shown uses a lightbulb to bake small cakes. What types of energy does the toy oven use to bake the cakes?

• Electrical and thermal

• Mechanical and electrical

• Thermal and mechanical

• Light and sound

Tags

NGSS.MS-PS1-4

The photograph shows a girl using a lab instrument during an investigation on light. Which correctly identifies the reasons for the appearance of the girl's eye through the lab instrument?

• Magnification by the instrument

  Reflection off the instrument

  Light moving in straight lines

• Magnification by the instrument

  Refraction through the instrument

  Light moving in straight lines

• Refraction through the instrument

  Reflection off the instrument

• Magnification by the instrument

  Refraction through the instrument

  Reflection off the instrument

Which object requires only mechanical energy to perform its main function?

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Which statement about light is supported by this picture?

• Light travels in straight lines until it enters a different material like water in a lake.

• Light can refract in air and in clear water.

• Light is reflected off the smooth surface of the lake.

• The water in the lake is blue because light forms an image.

Tags

NGSS.MS-PS4-2

For an investigation a teacher dropped a bolt into a container of maple syrup and asked students to remove it without touching the syrup. The students first tried to use a strong magnet to remove the bolt, but it remained on the bottom of the container. They finally poured the syrup into another container to get the bolt out. Which of these best describes some of the bolt's physical properties?

• The bolt is magnetic and has the same density as the maple syrup.

• The bolt is nonmagnetic and more dense than the maple syrup.

• The bolt is nonmagnetic and less dense than the maple syrup.

• The bolt is magnetic and less dense than the maple syrup.

• The bolt is magnetic and has the same density as the maple syrup.

Tags

NGSS.MS-PS1-2

When a rainbow is formed outside naturally, what causes the light to refract?

• A. Small raindrops

• B. Sunlight rays

• C. Tiny mirrors

• D. Glass prisms

Which explains why the fork looks different under water?

• light can't pass through the glass
• the wavelength of light lengthens
• the amount of light increases when going through water
• light is refracted at an angle

Tags

NGSS.MS-PS4-2

Smooth surfaces _______ a lot of light.

• reflect
• bend
• absorb
• twist

Tags

NGSS.MS-PS4-2

Why do we see objects as white?

• They absorb all light
• They reflect all light
• They absorb some light and reflect some light

Tags

NGSS.MS-PS4-2

Opaque means...

• No light passes through it
• All light passes through it
• Some light passes through it

Tags

NGSS.MS-PS4-2