CK-12 4th grade Science 1.6-1.10 Quiz

What is a benefit of using wind energy?

• no pollution

• Wind energy is inexpensive to produce

• Wind turbines are pretty

• Wind energy is reliable and consistent

what is another name for water power?

• Hydropower

• Wind Power

• Solar Power

• Nuclear Power

When light strikes a surface that is smooth is called

• Regular Reflection

• Diffuse Refraction

• Specular Reflection

• Different Reflection

Tags

NGSS.MS-PS4-2

When light strikes a surface that is rough is called

• Diffuse Reflection

• Reflection of Light

• Refraction of Light

• Specular Reflection

Tags

NGSS.MS-PS4-2

The bending of light is called

• Refraction

• Diffraction

• Dispersion

• Photon Emission

Tags

NGSS.MS-PS4-2

The speed of light is about ________ meters per second

• 300 million

• 500 million

• 1 billion

• 5 million

The physical property that occurs between particles or objects

• Electric Charge

• Density

• Friction

• Boiling Point

What is an example of static discharge?

• Lightning

• Electric Shock

• Thunder

• Rain

Tags

NGSS.MS-PS2-5

A continuous flow of electric charge is

• Electric Current

• Electricity

• Electrons

• Voltage

What allows electrons to flow freely?

• Conductors

• Insulators

• Resistors

• Magnets