Physics (IGCSE) Revision

82 Questions | By Geniusasis | Updated: Mar 21, 2022 | Attempts: 2327

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Based On IGCSE Physics course

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1.

What is the equation for work done: so WORK DONE=
2.

(use'^' for power of)Complete the kinematic equation : v^2=
3.

Which of the following is a feature of sound waves? 1: longitudinal waves 2: transverse waves 3: can travel through a vaccum 4: cannot go through solids or liquids. 5: can go through a gas. A: 1,3,4,5 B:2,4,5 C:4 only D:1 only E: 1,3,5
4.

Pressure in liquids is given by : (only use symbols)
5.

3000 Gigawatts = __________ watts
- A.
  
  3 x 10^-12
- B.
  
  3 x 10^9
- C.
  
  3 x 10^12
- D.
  
  3 x 10^-9
6.

Acceleration = velocity / time
- A.
  
  True
- B.
  
  False
7.

An object moving in the orbit of earth, travels at constant velocity. Which law from the Newton's laws of motion correctly describes this.
- A.
  
  First Law
- B.
  
  Second Law
- C.
  
  Third Law
- D.
  
  None
8.

Force = ___________ x ________________
- A.
  
  F=mc^2
- B.
  
  F= v/a
- C.
  
  F=ma
- D.
  
  F=work done/speed
9.

Mass of an object on Earth is 120kg. Calculate the weight of the person on the moon.[g(moon)= 1.6N/kg]. Remmember to use the correct units.
10.

Newton's third law describes that:
- A.
  
  Force is proportional to mass and acceleration
- B.
  
  Speed of an object is given by the distance divided by time
- C.
  
  Weight is equal to mass times the force of gravity
- D.
  
  Every action has a n equal but opposite reaction
11.

Speed is a : (tick two boxes)
- A.
  
  Scalar
- B.
  
  Vector
- C.
  
  Has no direction
- D.
  
  Has no magnitude
12.

Momentum = mass x _____________
- A.
  
  Acceleration
- B.
  
  Velocity
- C.
  
  Displacement
- D.
  
  Force
13.

Torque= force x perpendicular distance
- A.
  
  True
- B.
  
  False
14.

Principle of moments says describes that: the sum of the _________a_________ moments about any point is equal to the sum of ________b_______ moments abouth that point.
- A.
  
  A: clockwise b: anticlockwise
- B.
  
  A: forces b: fields
- C.
  
  A: current b: time
- D.
  
  A: upwards b:downwards
- E.
  
  A: downwards b: upwards
15.

Type in the Hooke's Law:
16.

A barometer and a manometer use:
- A.
  
  Mercury and chromium
- B.
  
  Mercury only
- C.
  
  Boiling water
- D.
  
  Cold water
17.

Law of Floatation: If an object is floating freely, the weight of fluid it displaces is equal to its ________a______. And if a material floats, its _____b______ must be equal to or less than that of the fluid supporting it.
- A.
  
  A: upthrust b: fluid displaced
- B.
  
  A: fluid displaced b: upthrust
- C.
  
  A: density b: weight
- D.
  
  A: weight b: density
18.

A car moving at constant velocity has which of the following forces acting on it?
- A.
  
  Thrust
- B.
  
  Gravity
- C.
  
  Air resistance
- D.
  
  Momentum
19.

Efficieny =
- A.
  
  Work done / energy input
- B.
  
  Force x speed
- C.
  
  Work done / time taken
- D.
  
  Power input / power output
20.

Power =
- A.
  
  Energy used / time
- B.
  
  Work done / time taken
- C.
  
  Efficiency / energy output
- D.
  
  Force / time
21.

A boat is travelling at 35 km/hr. Froce used to push the boat in the water in 350N. Calculate the useful power output of the boat.
- A.
  
  1050W
- B.
  
  10500W
- C.
  
  10W
- D.
  
  0.1W
22.

Random motion of large visible particels, caused by smaller invisible ones is called:
- A.
  
  Diffusion
- B.
  
  Condensation
- C.
  
  Brownian motion
- D.
  
  The Butterfly effect
23.

Describe how a thermistor thermometer works.
24.

Convert: (i) 0 *C to Kelvin (ii) 341 K to *Celcius
- A.
  
  (i)273K (ii)68*C
- B.
  
  (i)-273K (ii)614*C
- C.
  
  (i)0 K (ii)-341*C
- D.
  
  (i)271 K (ii)341*C
25.

Define conduction