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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
In which of the following situations does the conservation of momentum apply?
A collision between two billiard balls.
A parachute slowing down a falling object.
A rocket using fuel to accelerate in space.
A car accelerating down a hill.
Which of the following is true about elastic collisions?
The objects stick together.
Momentum is not conserved.
Kinetic energy is conserved.
Some kinetic energy is lost.
A 2 kg object moves with a velocity of 5 m/s. If it collides elastically with a 3 kg object initially at rest, what is the total momentum of the system after the collision?
15 kg·m/s.
5 kg·m/s.
10 kg·m/s.
0 kg·m/s.
The principle of conservation of linear momentum states that:
Total momentum increases in an isolated system.
Momentum is conserved only when objects collide.
Total momentum is always conserved in a closed system.
Momentum of each object in a system is conserved.
Which statement is true about momentum in a closed system?
It is always conserved in all types of collisions.
It is not conserved in inelastic collisions.
It remains constant only in elastic collisions.
It is conserved when external forces are present.