Question 1 of 25
Hints left: 3
Q1
The electric current that flows in one direction only is called?
Q2
What is the SI unit of temperature?
Q3
The frequency of a sound wave determines its:
Q4
Which of the following is an example of a vector quantity?
Q5
What is the frequency range of audible sound for humans?
Q6
Which nuclear reaction powers atomic bombs?
Q7
What is the term for the distance between two successive crests of a wave?
Q8
Which of the following is NOT a fundamental force of nature?
Q9
Which law of motion is also known as the law of inertia?
Q10
In which device is the photoelectric effect used?
Q11
The rate at which work is done or energy is transferred is known as?
Q12
The energy possessed by a body due to its motion is called:
Q13
The work done is zero when?
Q14
Which physical quantity is conserved in an elastic collision?
Q15
The amount of heat needed to raise the temperature of one kilogram of a substance by one degree Celsius is called?
Q16
Which of the following is a non-contact force?
Q17
The frequency of a wave is related to its?
Q18
What is the bending of waves around obstacles called?
Q19
The property of light where it bends when passing from one medium to another is known as?
Q20
The force exerted by a fluid in an upward direction is called?
Q21
The force that opposes the relative motion between two surfaces in contact is called?
Q22
What is the primary source of energy in nuclear reactors?
Q23
Which type of electromagnetic radiation has the shortest wavelength?
Q24
The pitch of a sound is determined by which factor?
Q25
The temperature at which a gas turns into a liquid is called?