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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
5/31 MCQs for:
MECHANICS : PROPERTIES OF MATTER - Density
A metal has a mass of 50 kg and a volume of 0.02 m³. What is its density?
2500 kg/m³.
1000 kg/m³.
1500 kg/m³.
5000 kg/m³.
The density of a substance is given by 3 g/cm³. If its mass is 150 g, what is its volume?
150 cm³.
45 cm³.
50 cm³.
60 cm³.
How would you increase the density of an object?
Increase its volume.
Increase its mass and keep volume constant.
Decrease its volume and keep mass constant.
Decrease its mass.
The density of a substance is calculated using the formula ρ = m / V. If the mass of an object is 12 kg and its volume is 3 m³, what is its density?
4 kg/m³.
6 kg/m³.
36 kg/m³.
9 kg/m³.
Which of the following is an example of how density is used in engineering?
Calculating the distance between objects.
Designing floating oil rigs.
Determining the color of objects.
Measuring the temperature of water.
