Introduction to Mechanics - JSS1 Basic technology Past Questions and Answers - page 1
What is mechanics?
The study of electricity
The study of motion and forces
The study of living organisms
The study of chemical reactions
Which of the following is an example of linear motion?
A car driving on a straight road
A satellite orbiting the Earth
A pendulum swinging
A spinning top
What type of motion is demonstrated by a satellite orbiting the Earth?
Linear motion
Circular motion
Oscillatory motion
Random motion
Which motion is characterised by repetitive back-and-forth movement?
Linear motion
Circular motion
Oscillatory motion
Constant motion
What is a force?
A type of energy
An interaction that changes the motion of an object
A measure of mass
A unit of time
Which of the following is a contact force?
Gravitational force
Magnetic force
Friction
Electrostatic force
What is the unit of force?
Joule
Watt
Newton
Ampere
According to Newton’s first law of motion, what happens to an object at rest if no unbalanced force acts on it?
It starts moving
It stays at rest
It accelerates
It changes shape
What does Newton’s second law of motion state?
For every action, there is an equal and opposite reaction
An object at rest stays at rest
Force equals mass times acceleration
Energy is conserved
What type of force does not require physical contact between objects?
Friction
Tension
Normal force
Magnetic force