Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
Which of the following statements is an advantage of nuclear fusion over nuclear fission?
The resulting chain reaction which produces large amount of energy
no radioactve wave is produced as bye product
very high temperature is required in the process
the end product is lead
Correct answer is A
No explanation has been provided for this answer.
an electric motor is a machine that converts
mechanical energy into electrical energy
electrical energy into mechanical energy
high voltage to low voltage
low voltage to high voltage
Correct answer is B
No explanation has been provided for this answer.
the magnet is moved away from the stationary solenoid
the solenoid is moved away from the stationary magnet
the magnet is moved towards the stationary solenoid
there is no relative motion between the magnet and the solenoid
Correct answer is D
No explanation has been provided for this answer.
Lenz's law of electromagnetic induction states that
a force is exerted on a current-carrying conductor in a magnetic field
electromotive force id induced in a circuit whenever there is a change in the magnetic flux linked with the circuit
the magnitude of the induced electromotive force in a circuit is proportional to the rate of change of flux linking the circuit
the induced current in a coil is in such a direction that it sets up a magnetic field which opposes the change producing it
Correct answer is D
No explanation has been provided for this answer.
8kg, 8N
1kg, 10N
64kg, 10N
8kg, 10N
Correct answer is D
m = 8kg, wt = 80 x \(\frac{1}{8}\) = 10N