P3 Particles in Action

Defintions of Key Words

HideShow resource information

Absolute Zero

The coldest temperature that can be reaches 0K or -273

1 of 14

Alpha Decay

the emission of alpha particles by unstable nuclei containing more than 82 protons

2 of 14

Alpha Particle

Consists of 2 protons and 2 neutrons

emitted from nuclei of radioactive substances during alpha decay

3 of 14

Beta Decay

the emission of An electron or positron from an unstable nucleus giving a nucleus with the same mass number but different proton number

4 of 14

Cathode

heated metal wire that emits electrons

5 of 14

Daughter Nucleus

more stable nucleus produced by radioactive decay of an unstable nucleus

6 of 14

Electron

negatively charged particle

7 of 14

Electron Gun

device that uses a heated cathode and attractive anode to acclerate the elcetrons emitted from the cathode by thermionice emission

8 of 14

Fundamental Particles

The smallest particles that can exist

used to make other more complex particles

9 of 14

Isotopes

atoms of the same element that have the same number of protons but a different number of neutrons

10 of 14

Kelvin Scale

the temperature scale used by scientists

1 degrees= 1K

11 of 14

Lepton

fundamental particle like a electron or positron

12 of 14

Neutron

a neutrally charged subatomic particle found in a nucleus of atoms

made from up, down down quarks

13 of 14

Oscilloscope

a device using a beam of electrons that show patterns produced by rapidly changing voltages

14 of 14

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Energy resources »