Waec Flashcards
(26 cards)
What is the definition of force in physics?
Force is an interaction that changes the motion of an object.
True or False: Work is done when a force moves an object.
True
Fill in the blank: The unit of measure for energy is __________.
Joule
What is the definition of mass?
Mass is the measure of the amount of matter in an object.
What is the law of conservation of energy?
Energy cannot be created or destroyed, only transformed from one form to another.
True or False: Kinetic energy is the energy of motion.
True
What is potential energy?
Potential energy is the stored energy of an object due to its position or state.
Define acceleration.
Acceleration is the rate of change of velocity of an object.
Fill in the blank: The unit of force is __________.
Newton
What is the definition of velocity?
Velocity is the speed of an object in a specified direction.
True or False: An object in motion will stay in motion unless acted upon by an external force.
True
What is the definition of momentum?
Momentum is the product of an object’s mass and its velocity.
Define pressure in physics.
Pressure is the force applied per unit area.
Fill in the blank: The unit of pressure is __________.
Pascal
What is the definition of temperature?
Temperature is a measure of the average kinetic energy of the particles in a substance.
True or False: Heat is the transfer of thermal energy from one object to another.
True
What is the definition of a wave?
A wave is a disturbance that transfers energy through space or matter.
Define frequency in the context of waves.
Frequency is the number of waves that pass a given point in one second.
Fill in the blank: The unit of frequency is __________.
Hertz
What is refraction?
Refraction is the bending of a wave as it passes from one medium to another.
True or False: Sound waves are longitudinal waves.
True
What is the definition of electromagnetism?
Electromagnetism is the interaction between electric charges and magnetic fields.
Define the term ‘circuit’ in physics.
A circuit is a closed loop that allows electric current to flow.
Fill in the blank: The unit of electric current is __________.
Ampere
