This document contains 20 multiple choice questions testing knowledge of various physics and astronomy concepts. The questions cover topics like refraction of light, types of lenses, units of measurement for electric resistance and power, Newton's laws of motion, flight simulators, solar and lunar eclipses, properties of metals and conductors, Einstein's theory of relativity, and the Milky Way galaxy. It also includes 10 excerpted multiple choice questions about concepts in physics including inertia, kinetic and potential energy, friction, valence, supersaturated solutions, electrolysis, center of mass, Jacobson's organs in snakes, taxonomic classification, and enthalpy in exothermic reactions.

1. 1. When light bends as it enters a different medium the process is known as what?
2. A magnifying glass is what type of lens?
3. Electric resistance is typically measured in what units?
4. A person who studies physics is known as a?
5. Metals expand when heated and do what when cooled?
6. What is the first name of the famous scientist who gave us Newton’s three laws of motion?
7. What state of the art computer technology is used to train pilots when wanting to copy the experience of flying
an aircraft?
8. Electric power is typically measured in what units?
9. The most recognized model of how the universe begun is known as the?
10. Who is the Hubble Space Telescope named after?
11. The wire inside an electric bulb is known as the what?
12. Theoretical physicist James Maxwell was born in what country?
13. Infrared light has a wavelength that is too long or short to be visible for humans?
14. What kind of eclipse do we have when the moon is between the sun and the earth?
15. True or false? Iron is attracted by magnets.
16. What is the earth’s primary source of energy?
17. Conductors have a high or low resistance?
18. Electric current is typically measured in what units?
19. What scientist is well known for his theory of relativity?
20. Earth is located in which galaxy?
Question Excerpt
1. Why a man sitting in a moving bus suddenly moves forward when the bus suddenly stops
A. due to inertia
B. due to brakes
C. due to negative accelaration
D. due to force exerted by the machine
E. none of these
2. The person sitting in a moving car has _________enrgy
A. kinetic energy
B. potential energy
C. both kinetic and potential energy
D. elatic potential energy
E. gravitational patential energy
3. Why in hitting carpet with stick mud flies away?

2. A. due to friction
B. due to inertia
C. none of these
D. due to force of stick
E. bith a and b
4. Why transition elements are called so?
A. variable valency
B. having different colours
C. both a and b
D. none of these
E. constnt valency
5. Why is it difficuilt to prepare a super saturated solution?
A. none of these
B. because it cant be prepared at room temprature
C. solute particles cant be homogenised
D. constant heat pressure
E. oxygen in air
6. Is electrolysis same to ionization?if no why
A. yes
B. electrolysis cant be done without ionization
C. it can be done
D. none of these
E. matter splits up into its ions
7. Why on hitting the ball with the center of bat more efeective short is played?
A. Fx+Fy=o
B. center of gravity remained within its base
C. it produces more torque
D. none of these
E. both a and b
8. What are Jacbsons organs?
A. two pits present on palate on snake
B. nostrils
C. organs present in note
D. none of these
E. tachea
9. Each rank of classification is called
A. texon
B. evaloutionary txanomy
C. homology
D. analogy
E. none of these
10. Enthalapy of products of exothernic reaction is_________
A. less

3. B. more
C. none of these
D. sometimes less and someties more
E. equal
A
B
1. What is the name of the point where light rays from infinity coverge after passing
through a lens?
Parabola
Infinity
Center
Focus
2. What is the speed of sound in air in meters per second (at a pressure of one atmosphere
and temperature of 25oC)?
330
110
490
230
3. The SI unit of electric current is
Ohm
Farad
Ampere
Mho
4. Metals expand on heating and contract on cooling.
True

4. False
5. Conductors have a _______ resistance.
High
Intermediate
Low
Unknown