WorksheetsA2 Terms and Definitions Physics
Total questions: 20
Worksheet time: 15mins
It is the amount of work needed to move an electric charge from its reference point to specific point on electric field.
Electric Charge
Electric Potential Energy
Electric Potential
Electric Field Lines
It is said to exist in the region or space around a charged object, the source charge.
Electric Charge
Electric Potential Energy
Electric Potential
Electric Field Lines
The heat absorbed by melting a solid is known as
latent heat of fusion
latent heat of solid
latent heat of liquid
latent heat of vaporisation
What is internal energy
the average kinetic energy of the particles
heat energy
the sum of the kinetic and potential energy
the average potential energy
What is meant by forced oscillation?
When an object is vibrating at its natural frequency
When an object continues to vibrate after the disturbance is removed
When an object vibrates at a frequency which is different from its natural frequency
When an object receives a vibration from external sources
Which of the following is numerically equal to the specific heat capacity of the substance of a solid body?
The thermal energy required to melt the body
The thermal energy required to increase the temperature of unit mass of the body by 1K
The thermal energy required to increase the temperature of the body by 1K
The total kinetic and potential energy of all the molecules in the body
Define capacitance
ratio of p.d. across the capacitance to the charged on either capacitor
ratio of charged on either plates of capacitor to p.d. across the capacitor.
product of charged on either plates and p.d. across the capacitor.
gradient of charged to p.d. graph
(a) is the process to convert an alternating current into a direct current by using diode
Define gravitational potential energy
When a mass is moved, the energy stored due to the work done in a gravitational field
The mass of an object multiplied by the gravitational field strength multiplied by the height through which it moves
The energy gained by a mass when it is raised through a height
The energy stored in a mass due to it being in a gravitational field
Explain what is meant by an electric field
Space in which a charge has an electric potential energy
The field produced by an electric charge
Area where a charge experiences a force
The electric force per unit charge
This is the
root mean square speed
mean square speed
mean square root speed
squared root mean speed
One electronvolt is equal to
1.6×10−19 C
1.6×10−19 J
1.6×10−19 V
1.6×10−19 W
What is alternating current
the process of inducing an emf (voltage) with a change in magnetic flux
Electric currents whose direction and magnitude change periodically depending on time are called alternating current
Steady current which delivers the same average power as the a.c. to a resistive load.
Making a rectified current more steady (or smooth) by placing a capacitor in parallel with the resistor
Which is the best definition for 'root mean square speed'?
ꞓ2 (c bar squared)
Mean kinetic energy of particles in a gas, regardless of direction
Mean of all the speeds of all the many atoms in a gas
Mean of the squares of the random speeds, square rooted
Simple harmonic motion should be defined as:
Something swinging back and forth, where the amplitude and frequency affect the acceleration
Phase difference between displacement and acceleration is π
Isochronous (independent of amplitude)
Amplitude is directly proportional to displacement (in opposite directions)
'Gravitational field strength' is defined as:
Gravity
Radial field surrounding mass
Force per unit mass
9.81 m/s2
Which of the following definitions is correct?
Angular displacement is the rate of change of velocity.
Angular displacement is the rate of change of angular velocity.
Angular velocity is the rate of change of displacement.
Angular velocity is the rate of change of angular displacement.
