Question 1 of 25
Hints left: 3
Q1
Who discovered the law of universal gravitation?
Q2
Which of the following is an example of a scalar quantity?
Q3
The force exerted by the Earth on an object is known as?
Q4
Which element is most commonly used in making semiconductors?
Q5
What is the process of converting a solid directly into a gas called?
Q6
The power of a lens is measured in?
Q7
What type of mirror is used in a car's rearview mirror?
Q8
Which physical quantity is the rate of change of displacement?
Q9
Which of the following is NOT a renewable source of energy?
Q10
Which law explains the phenomenon of buoyancy?
Q11
What is the unit of power in the SI system?
Q12
The principle stating that the volume of a gas is directly proportional to its absolute temperature at constant pressure is known as?
Q13
Who formulated the laws of motion?
Q14
What is the value of acceleration due to gravity on Earth’s surface?
Q15
What happens to the resistance of a conductor as its temperature increases?
Q16
The reflection of sound that is heard after the original sound is called:
Q17
In which type of lens does light converge at a point?
Q18
The potential difference between two points in an electric circuit is measured in?
Q19
Which force holds the nucleus of an atom together?
Q20
The energy required to raise the temperature of a substance by one degree Celsius is called?
Q21
The phenomenon where the frequency of a wave changes due to the relative motion of the source and observer is known as?
Q22
Which material is commonly used to make the filament of light bulbs?
Q23
What kind of wave is light?
Q24
The force required to change the velocity of an object is called?
Q25
What is the study of sound waves called?