IS RADIATION DANGEROUS

Electromagnetic radiation consists of oscillating waves of pure energy.

Which of the following is NOT an example of electromagnetic radiation?

• microwaves

• sound waves

• light rays

• x-rays

The reason why we have nuclear radiation is because of: (a)  

• unstable nuclei
• conduction
• ions
• convection

Ionizing radiation is energetic enough to potentially damage cells upon impact.

Which of the following radiation can be ionizing?

• both electromagnetic and nuclear

• electromagnetic

• nuclear

• neither electromagnetic or nuclear

Which of the following would NOT significantly reduce our exposure to ionizing radiation? (a)  

• eating bananas
• wearing sunscreen when outdoors
• have our homes checked for radon
• only have x-ray when it is really necessary

Which type of radiation is gamma ray?

Electromagnetic radiation is pure energy consisting of interacting electrical and magnetic waves (a)   through space.

• oscillating
• vibrating
• travelling
• created

​ (a)   radiation originates in the ​ (b)   (c)   .

• nucleus
• Nuclear
• atomic
• electromagnetic
• neutron

Strong nuclear force is a phenomenon that struggles to overcome the (a)   in the nucleus.

• repulsion of protons
• attraction of electrons
• repulsion of neutrons
• attraction of protons

Nuclear radiation comes from natural sources like radon, a gas which seeps up from the ______.

Bananas contain a little amount of ​ (a)   that can be dangerous if you eat around 170 pieces in a day.

• potassium isotope
• calcium isotope
• radon