MP1 Review

Why can’t we hear the constant nuclear explosions of the sun?

• The sun does not vibrate.
• There is no air in space to help the sound travel.
• The sound from the sun is ultrasonic.
• The sun only gives off radio waves

Electricity is a flow of moving electrons. What can this be considered?

• kinetic energy
• magnetic energy
• radiant energy
• potential energy

What is nuclear FISSION?

• the combining of two nuclei.
• the destruction a nucleus.
• the chemical bonding of two atoms.
• the splitting of an atomic nucleus.

What is nuclear fusion?

• the forceful combining of two nuclei.
• the destruction a nucleus.
• the chemical bonding of two atoms.
• the splitting of an atomic nucleus.

Which frequency of electromagnetic (EM) radiation has the most energy and shortest wavelength?

• radio
• microwave
• ultraviolet
• gamma

How do microwaves increase the temperature of food?

• increasing the vibration and rotation of molecules inside the food
• increasing the potential energy of the food molecules
• breaking the molecular bonds in the food
• increasing the gamma waves going through the food

As the temperature of any substance decreases, the kinetic energy of its molecules will:

• increase.
• increase then decrease.
• decrease.
• stay the same.

Which is opaque to x-ray radiation?

• bone
• skin
• muscle
• fat

Which is not a wavelength of visible light?

• red
• blue
• black
• violet

All nuclear FUSION reactions will produce a ________ atom because TWO nuclei _____________

• lighter, split
• heavier, split
• lighter, combine
• heavier , combine