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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
If two objects collide and after the collision they move with the same velocity, which of the following is true?
The collision is perfectly elastic.
The total momentum before the collision is equal to the total momentum after the collision.
Momentum is not conserved.
The total kinetic energy is conserved.
Which of the following is the correct unit of linear momentum?
m/s².
N·s.
kg.
kg·m/s.
A car of mass 1000 kg is moving at a velocity of 20 m/s. What is the car’s momentum?
5000 kg·m/s.
2000 kg·m/s.
200 kg·m/s.
1000 kg·m/s.
Which of the following statements is true about the principle of conservation of linear momentum?
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.
Momentum is conserved only in elastic collisions.
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.