1
Q
What does the radioactivity of a source do overtime?
A
decreases
2
Q
Where does the radioactive substance give out radiation?
A
Nucleus
3
Q
How can radiation be measured?
A
With a Geiger-Muller tube and counter, which records the count rate measured per second
4
Q
What is the half-life?
A
The time it takes for the amount of radiation emitted by a source to halve
Physics
flashcards
Decks in class (57)
# Cards
-
Energy Stores and Systems6
-
Kinetic and Potential Energy Stores7
-
Specific Heat Capacity2
-
Conservation of Energy and Power2
-
Reducing Unwanted Energy Transfers4
-
Efficiency2
-
Energy Resources and Their Uses3
-
Wind, Solar and Geothermal6
-
Hydro-Electricity, Waves and Tides7
-
Bio-Fuels and Non-Renewables5
-
Trends in Energy Resource Use2
-
Current and Circuit Symbols6
-
Resistance and V=IR1
-
Resistance and I-V Characteristics4
-
Circuit Devices5
-
Series Circuits3
-
Parallel Circuits3
-
Electricity in the Home12
-
Power of Electrical Appliances3
-
More on Power1
-
The National Grid6
-
The Particle Model and Motion in Gases4
-
Density of Materials3
-
Internal Energy and Changes of State3
-
Specific Latent Heat4
-
Developing the Model of the Atom6
-
Isotopes and Nuclear Radiation12
-
Nuclear Equations5
-
Half-life4
-
Irradiation and Contamination4
-
Contact and Non-Contact Forces6
-
Weight, Mass and Gravity6
-
Resultant Forces and Work Done4
-
Calculating Forces1
-
Forces and Elasticity5
-
Investigating Springs1
-
Distance, Displacement, Speed and Velocity10
-
Acceleration5
-
Distance-Time and Velocity-Time Graphs11
-
Terminal Velocity9
-
Newton's First and Second Laws4
-
Inertia and Newton's Third Law4
-
Stopping Distances5
-
Reaction Times4
-
Momentum3
-
Transverse and Longitudinal Waves6
-
Experiments With Waves2
-
Wave Behaviour and Electromagnetic Waves4
-
Refraction8
-
Radio Waves6
-
EM Waves and Their Uses4
-
More Uses of EM Waves7
-
Dangers of Electromagnetic Waves3
-
Permanent and Induced Magnets6
-
Electromagnetism5
-
The Motor Effect5
-
Electric Motors6
