FSA Science

What kind of energy transformation is represented in the system above?

• Mechanical-> Electrical-> Light

• Light-> Electrical-> Light

• Light->Electrical-> Sound

• Light->Chemical-> Electrical-> Sound

It is a cold day. Tom decides to turn on the heat in his home. His home is connected to power lines that eventually receive their power from a hydroelectric dam about 50 miles away. What energy transformations allows tom to heat up his home?

• Mechanical energy from the river turns into electrical energy in the dam. This electrical energy flows to Tom’s home which in return makes him turn on the ac which releases chemical energy.

• Mechanical energy from the river to Chemical energy in the dam. This chemical energy flows to Tom’s home which in return makes him turn on his heater, which releases heat energy to warm up his home

• Mechanical energy from the river to electrical energy in the dam. This electrical energy flows to Tom’s home and allows him to turn on the heater, which transforms electrical energy to heat energy

An earthquake seeds out mechanical waves in all directions. These waves travel through different materials in the Earth. Properties of a wave change when it moves from one material to another. What property of a wave changes as it moves from one material to another

• Wave speed

• Wavelength

• Wave frequency

• Wave amplitude

Tags

NGSS.HS-PS4-1

During a thunderstorm, you see the lighting before you hear the thunder. Which of the following explains this observation?

• Light travels faster than sound

• Light has a greater mass than sound

• Sound has a longer wavelength than light

• Sound and light travel at the same speed

Visible Light and Gamma Rays do not need a medium to travel from one place to another. Visible light and Gamma rays are examples of:

• Electromagnetic Waves

• Mechanical Waves

A wave light is traveling from the air to water. What will happen to the speed of the light as it travels from one medium (Air) to the other medium (water)?

• The light will speed up when it hits the water

• The light will slow down when it hits the water

• The speed of the light will remain the same

Tags

NGSS.MS-PS4-2

Identify which property of a wave is labeled F

• Period

• Frequency

• Amplitude

• Wavelength

Tags

NGSS.MS-PS4-1

What is a physical property?

• Allows the substance to remain the same.

• Allows the substance to change into another substance and produce something new

Which of the following demonstrates a physical property?

• A bike will rust if it is left out in the rain.

• Butter will become a liquid when placed into a hot pan

• Vinegar and baking soda will produce bubbles when they mix

Gold has a density of 19.3 g/cm3. Which substance is going to have a higher density than the rest?

• Coin

• Bar

• Statue

• Car

• Neither because they all have the same density.