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Exercise 1
GCE O-Level 2018.
GCE O-Level 2019.
GCE O-Level 2020.
GCE O-Level 2021.
GCE O-level 2023
GCE O-level 2024
Select Lessons (41)
Dynamics: Newton’s Laws of Motion
ELECTRICITY : ELECTROMAGNETISM - Alternating Current
ELECTRICITY : ELECTROMAGNETISM - Current in a Magnetic Field
ELECTRICITY : ELECTROMAGNETISM - Electromagnetic Induction
ELECTRICITY : ELECTROMAGNETISM - Magnets
ELECTRICITY : Electric Current I
ELECTRICITY : Electrostatics
ELECTRICITY : MODERN PHYSICS - The Electron (Electronics)
ELECTRICITY : WAVES - Light
ELECTRICITY : WAVES - Vibrations and Sound
ELECTRICITY: Current
Energy: Application And Uses
Forces
HEAT : TEMPERATURE - Concept of Heat and Temperature
HEAT : TEMPERATURE - Heat Capacity
HEAT : TEMPERATURE - Heat Transfer
HEAT : TEMPERATURE - Thermometers
HEAT : TEMPERATURE - Thermometric Properties
Health Education
Linear Momentum
MECHANICS : ENERGY - Forms of Energy
MECHANICS : ENERGY - Machines
MECHANICS : ENERGY - Power
MECHANICS : ENERGY - Work
MECHANICS : FORCES - Moments
MECHANICS : FORCES - Newton’s laws of Motion
MECHANICS : FORCES - Physical quantities
MECHANICS : FORCES - Types and characteristics of forces
MECHANICS : FORCES - Vectors and Scalars
MECHANICS : MOTION - Conservation of Linear Momentum
MECHANICS : MOTION - Linear Motion
MECHANICS : PROPERTIES OF MATTER - Density
MECHANICS : PROPERTIES OF MATTER - Hooke’s Law
MECHANICS : PROPERTIES OF MATTER - Pressure
MOTION
Matter: Its Properties & Transformation
PRESSURE
Radioactivity
WAVES: Electromagnetic
5/30 MCQs for:
MECHANICS : MOTION - Conservation of Linear Momentum
Which of the following statements is true about the principle of conservation of linear momentum?
Momentum is conserved only in elastic collisions.
Momentum is conserved in both elastic and inelastic collisions.
Momentum is conserved when external forces are acting on the system.
Momentum is conserved only when objects do not collide.
In which of the following situations does the conservation of momentum apply?
A rocket using fuel to accelerate in space.
A parachute slowing down a falling object.
A collision between two billiard balls.
A car accelerating down a hill.
If two objects collide and their combined mass is unchanged, what happens to their total momentum?
It increases.
It becomes zero.
It decreases.
It remains constant.
In a perfectly elastic collision between two objects, which of the following remains unchanged?
Total kinetic energy.
Total energy.
Total momentum.
All of the above.
If a 2 kg object moving at 10 m/s collides with a stationary 3 kg object, and they stick together after the collision, what is their combined velocity?
6 m/s.
4 m/s.
10 m/s.
2 m/s.
