physics-paper 2 🔋

• What is the focus of this video?

  Physics paper 2 topics for AQA GCC combined science
• What should you watch out for on each slide?

  Headers that change color indicating higher tier only
• Why is it important to write in black pen?

  Because the exam paper will be scanned
• What units might you need to convert in the exam?

  Masses in grams to kilograms
• How should you format extended response answers?

  In bullet points for clarity and time-saving
• What is required for a six-mark evaluate question?

  A conclusion must be included
• What should you ensure when writing a practical method?

  It is in logical order and easy to follow
• What skills will be assessed in the exam?

  Your working scientifically skills and physics knowledge
• What is the difference between repeatable and reproducible data?

  Repeatable data can be obtained by the same person
• What is the resolution of your equipment?

  It refers to the smallest change that can be detected
• Why are computerized methods of data collection preferred?

  They are more accurate, rapid, and sensitive
• What should you do when translating data from a graph to a table?

  Ensure all points are plotted, including the origin
• What does a line of best fit need to be in GCSE science exams?

  It should curve if the data curves
• What percentage of marks in GCSE physics are for mathematical skills?

  30%
• What mathematical skills should you be comfortable with?

  Substituting and rearranging equations
• What units should you know for forces?

  All forces are measured in Newtons
• What is the unit for mass?

  Kilograms (kg)
• What unit is used for distance?

  Meters
• What is the unit for speed or velocity?

  Meters per second (m/s)
• What is the unit for time?

  Seconds
• What is the unit for gravitational field strength?

  Newtons per kilogram (N/kg)
• What is the unit for work done?

  Joules (J)
• What is the unit for acceleration?

  Meters per second squared (m/s²)
• What is the unit for momentum?

  Kilogram meters per second (kg m/s)
• What is the unit for frequency?

  Hertz (Hz)
• What is the unit for magnetic flux density?

  Teslas (T)
• What is the unit for current?

  Amperes (A)
• What is the unit for potential difference?

  Volts (V)
• What are scalar quantities?

  Quantities with magnitude only, no direction
• What are vector quantities?

  Quantities with both magnitude and direction
• How can vectors be represented?

  By arrows indicating size and direction
• What is a free body diagram?

  A diagram showing forces acting on an object
• What are contact forces?

  Forces that exist when objects touch each other
• What are non-contact forces?

  Forces that can exist without touching
• What causes weight?

  The force of gravity acting on mass
• What is Newton's third law of motion?

  For every action, there is an equal reaction
• What must be true about action-reaction force pairs?

  They are equal in size and opposite in direction
• What does mass measure?

  How much matter or how many atoms an object has
• How is mass measured?

  In kilograms (kg)
• How does mass change in different gravitational fields?

  Mass does not change regardless of location