Aqa physics stuvia 2024 - Study guides, Class notes & Summaries

Stuvia-2778008-aqa-a-level-physics-paper-1-exam Questions and Answers (2024/2025) (Verified Answers)

Stuvia-2778008-aqa-a-level-physics-paper-1-exam Questions and Answers (2024/2025) (Verified Answers)

Energy Stores - ANSWER1) Elastic potential 2) Gravitational potential 3) Thermal 4) Electrostatic 5) Nuclear 6) Chemical 7) Kinetic 8) Magnetic 9) Light 10) Sound How is energy transferred? - ANSWER1) Mechanically - force doing work 2) Electrically - work done by moving charges 3) Heating/Radiation - light, sound How can work be done? - ANSWERWhen a current flows or by a force moving an object Kinetic energy formula - ANSWERE=1/2mv² Kinetic energy(J) = 0.5 x mass(kg) x s...

Energy is transferred between stores - ANSWERThermal, kinetic, gravitational potential, elastic potential, chemical, magnetic, electrostatic, nuclear Energy is transferred... - ANSWERMechanically (by a force doing work), electrically (work done by moving charges), by heating or by radiation (like light or sound) When a system changes, energy is transferred - ANSWERIt can be transferred into or away from the system, between objects in the system or between different types of energy stores. ...

A measurement result is considered accurate if it is judged to be close to the true value. - ANSWERAccuracy Marking a scale on a measuring instrument. This involves establishing the relationship between indications of a measuring instrument and standard or reference quantity values which must be applied. For example, placing a thermometer in melting ice to see whether it reads zero in order to check if it has been calibrated correctly. - ANSWERCalibration Information, either qualitative or...

Current - ANSWERRate of flow of charge Coulomb - ANSWERThe amount of charge passing a point when a current of 1A flows for 1s Potential difference - ANSWERThe work done per unit charge in moving a small point positive charge between two points Threshold Voltage for a Diode - ANSWERThe voltage at which a current will begin to flow at, assumed to be +0.6V if not stated Reverse Bias - ANSWERWhen very little currency can flow in the reverse direction of a diode Variable Resistor - ANS...

A measurement result is considered accurate if it is judged to be close to the true value. - ANSWERAccuracy Marking a scale on a measuring instrument. This involves establishing the relationship between indications of a measuring instrument and standard or reference quantity values which must be applied. For example, placing a thermometer in melting ice to see whether it reads zero in order to check if it has been calibrated correctly. - ANSWERCalibration Information, either qualitative or...

an object or group of objects - ANSWERsystem _______ energy is the total kinetic energy and potential energy of all particles that make up a system - ANSWERinternal the idea that there is the same amount of energy befire and after it is transferred - ANSWERconservation of energy energy cannot be ------- -- --------- - ANSWERcreated or destroyed = 0.5 x mass x (speed)^2 - ANSWERkinetic energy type of energy stored in a stretched spring - ANSWERelastic potential energy = mass x g...

What is meant by work function (2) - ANSWERMinimum energy required by an electron to escape from (1) a metal surface (1) What is meant by ionisation energy? (2) - ANSWERMinimum energy required to remove an electron from an atom (1) from the ground state (1) Why do emitted electrons have a kinetic energy that varies up to a maximum value? (4) - ANSWEREnergy of a photon is fixed/constant (1) Energy is required for electrons to overcome work function ø (1) Electrons deeper into/below the s...

It is unlikely that all of the electricity that the UK needs can be generated by solar power systems. Explain why - ANSWERA really large area of land would need to be covered with solar cells due to the low useful power output of the solar cells Suggest two advantages of using this method to charge electric cars compared with plugging them into the mains electricity supply. - ANSWERrecharging is a continuous process fewer cells needed in the car more cars can be charged at the same time ...