Radioactivity and Energy Test Review

A metal with a mass of 10 grams absorbs 240 J of heat, and its temperature increases by 200°C. What is the specific heat?

• .12 J/g*°C

• 1.2 J/g*°C

• 12 J/g*°C

• 120 J/g*°C

Answer explanation

Use the equation c=Q/(m*ΔT)

Tags

SPS7

More and more countries are turning toward utilizing nuclear power plants to generate electricity, as the supply of fossil fuels continues to decrease. Which of the following is an advantage of using nuclear power instead of power generated from burning fossil fuels?

• nuclear power plants generate less air pollution

• nuclear power plants are easier to build and require fewer safety precautions

• fossil fuels are at a higher risk for theft than nuclear fuels

• accidents at fossil fuel plants are more catastrophic than those at a nuclear plant

Tags

SPS4

During photosynthesis, there is an energy transformation from ​ (a)   energy to (b)   energy.

• radiant
• chemical
• electromagnetic
• light
• mechanical
• sound
• kinetic
• thermal
• nuclear
• electrical

Tags

SPS7

In a fusion reaction, two atoms of hydrogen combine to form

• 1 atom of hydrogen and 1 atom of lithium.

• 1 atom of helium.

• 2 atoms of helium.

• None of the above

Tags

SPS4

Heat always flows from​ (a)   to ​ (b)   .

• high
• low
• hot
• cold

Tags

SPS7

A warm bottle of juice is placed in the refrigerator. The ​ (a)   from the ​ (b)   is transferred to the ​ (c)   of the ​ (d)   .

• heat
• juice
• cold
• refrigerator

Answer explanation

Heat flows, cold doesn't!

Tags

SPS7

_________ radiation doesn't change the atom.

• Alpha

• Beta

• Gamma

• Delta

Answer explanation

Gamma radiation is a wave that leaves the atom unchanged.

Tags

SPS4

​ (a)   does not require matter to move thermal energy through a material while ​ (b)   does require matter.​

• Radiation
• conduction
• energy flow
• heat transfer

Answer explanation

Radiation is the only form of heat transfer that does not require matter.

Tags

SPS7

Cooking a steak in a skillet is an example of

• radiation.

• conduction.

• convection.

• mechanical energy.

Tags

SPS7

Order the types of radiation from LIGHTEST to HEAVIEST.

• Gamma

• Alpha

• Beta

Tags

SPS4