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