Question

How big is an average eukaryotic cell?

	20 nm
	20 µm

	20 cm
	20 mm

How big is an average protein?

	2 cm
	2 nm

	2 µm
	2 mm

What type of energy is light?

	Potential energy
	Electromagnetic energy

	Kinetic energy
	Magnetic energy

Electrical energy

What property of light changes to make the different colors of visible light?

	The speed
	The wavelength

	The magnitude
	The direction

How many electrons does each carbon atom have?

	2
	6

12

How many electrons does each gold atom have?

	197
	118

79

Where are electrons in an atom?

	Orbitals
	Nucleus

How does an electron get to a higher orbital?

	Release energy
	Absorb energy

How does an electron get to a lower orbital?

	Release energy
	Absorb energy

What is a photon?

	A “packet” of light
	A positively charged subatomic particle, found in the nucleus

	A torpedo
	An electrically neutral subatomic particle, found in the nucleus

How are wavelength and frequency related?

	The shorter the wavelength, the higher the frequency
	The shorter the wavelength, the lower the frequency

How are electromagnetic energy and wavelength related?

	The shorter the wavelength, the lower the energy
	The shorter the wavelength, the higher the energy

Answer 1

Solution:

1)(2) Average big size of eukaryotic cell is 20um.

2) (2) Average size of protein is 2nm.

3)(2)Light is electromagnetic energy.Any type of light is considered as electromagnetic energy.

4)(2) Wavelength is the property of light changes to make the different color of visible light.

5)(2) As we know that atomic number of carbon atom is 6.Hence no. of electrons is 6.

6)(3) There are 79 electrons in a gold atom.

7)(1) Proton and neutron present in nucleus and electrons are present in orbitals.

8)(2) Electron absorb energy when it jump to higher orbital to lower orbital.

9)(1) Electrons mainly release energy when jump from lower orbital to higher orbital.

10)( 1) A photon is packet of light.

11) ( 1) The shorter the wavelength,higher the frequency.

12)( 2) Higher the energy then shorter the wavelength and higher the frequency.