Edexcel AS Level Physics Unit 1 Questions and Expert Answers the Latest Version

Page | 1



Edexcel AS Level Physics Unit 1
Questions and Expert Answers the
Latest Version

Question: Scalar


Answer: Quantity with magnitude


Question: Vector


Answer: Quantity with direction and magnitude


Question: Displacement-time graph


Answer: v = s/t


Question: Velocity-time graph


Answer: a=v/t


Question: Newtons first law


Answer: If the force acting on a body are in equilibrium, its velocity will remain
constant (or body is still)


Question: Newtons second law

, Page | 2

Answer: If there is a resultant force, then there will be a change in velocity
(acceleration) F=ma


Question: Newtons third law


Answer: If body A exerts force on body B, then body B exerts a force of the
same type on body A. Same line of force, different bodies, same type of force,
same magnitude, different directions of force


Question: Free body diagram


Answer:


Question: GPE


Answer: Egrav=Wh or Egrav=mgh


Question: Upthrust


Answer: Weight of fluid displaced (ρV)g


Question: Laminar flow


Answer: Generally lower speeds, layered, ordered, flow doesn't mix, roughly
parallel and barely any change in speed


Question: Turbulent flow