What are forces measured in?
If there are multiple forces acting on an object, they can be replaced as a single force, known as the ____________ ________.
If there is a non-zero resultant force acting an an object, what effect will be observed?
How do you work out the speed of something?
What extra factor does velocity have over speed?
What does the slope/gradient of a velocity-time graph show?
The area underneath the line in a velocity-time graph represents ______ __________ ____________ ________________.
Friction occurs when...
How do you work out the stopping distance?
What two forces do all falling objects experience?
What is meant by terminal velocity?
What is the name given to energy that is stored in an elastic spring?
What is 'work done' (in terms of energy)?
what is the gravitational potential energy?
What is meant by the phrase 'conservation of momentum'?
An electric current flowing through a circuit is...
An electric current will flow through an electrical component is there is a...
What two factors affect the amount of current that flows through a component?
As the amount of light falling on a light dependent resistor (LDR) increases, the resistance...
As the temperature of a thermistor increases, its resistance...
As the temperature of a filament lamp increases, and the bulb gets brighter, then the resistance of the lamp...
Why is this?
TRUE OR FALSE:
A diode allows current to flow through it in only one direction.
What colour is the:
Earth Wire?
Neutral Wire?
Live Wire?
Name two devices that give protection when an electrical fault occurs?
What is the name of the rate at which energy is transferred?
What is the amount of electrical charge that passes any point in a circuit measured in?
What is the Relative Mass and Relative Charge of:
A Proton
A Neutron
An Electron
What are isotopes?
What do isotopes of atoms that have too many or too few neurons form?
What is radioactive decay known as?
What happens in Alpha Decay?
What happens in Beta Decay?
What may happen when radiation collides with neutral atoms or molecules in a substance?
What is the charge of an alpha particle and a beta particle?
Alpha Particle:
What is its ionising power?
What does it take it be stopped?
Is it affected by Electric and Magnetic fields?
Beta Particle:
What is its ionising power?
What does it take it be stopped?
Is it affected by Electric and Magnetic fields?
Gamma Particle:
What is its ionising power?
What does it take it be stopped?
Is it affected by Electric and Magnetic fields?
What is the half life of a radioactive isotope?
What is Nuclear Fission and what is it used for?
What is meant by the term 'chain reaction'?
What is Nuclear Fusion?
What are the steps in a star's formation?
What happens when a star about the size of the sun runs out of hydrogen?
What happens when a star much larger than the sun runs out of hydrogen?
