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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
5/32 MCQs for:
Linear Momentum
Two objects collide and bounce off each other. Linear momentum:
Is conserved only if the environment is frictionless.
Is definitely conserved.
Is conserved only if the collision is elastic.
Is definitely not conserved.
A small object collides with a large object and sticks. Which object experiences the larger magnitude of momentum change?
The small object.
cannot be determined from the information given
Both objects experience the same magnitude of momentum change.
The large object.
A very heavy object moving with speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?
Nearly v.
Nearly infinite.
Nearly 2v.
Nearly 3v.
When is kinetic energy conserved?
In inelastic collisions.
In any collision in which the objects do not stick together.
In elastic collisions.
In all collisions.
Two identical 1500-kg cars are moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of the system?
4.4 x104 kgm/s at 590 N of E.
4.4 x 104 kgm/s at 310 N of E.
6.0 x 104 kgm/s at 310 N of E.
6.0 x 104 kgm/s at 590 N of E.