Explanation:
It is especially important for Grade 2 students to understand the principles of light in order to grasp more complex concepts during more advanced physical sciences classes. That’s why we have created a Light Quiz for Grade 2 students to get a basic understanding of light!
Let’s dive right in and get to the questions!
Q1: What is the fastest speed in the universe?
A: Light
B : Sound
C: Thought
D: Gravity
Answer: A
Explanation: The speed of light is the fastest speed in the universe.
Q2: Name two primary sources of light?
A: Fire and Electricity
B: Electricity and Water
C: Fire and Sunlight
D: Sunlight and Magnetism
Answer: C
Explanation: Fire and Sunlight are the two primary sources of light.
Q3: What type of heterogeneous mixture is a prism?
A: A gas
B: A solution
C: A paste
D: A solid object
Answer: D
Explanation: A prism is a solid object, and therefore a heterogeneous mixture.
Q4: What type of light is reflected by a mirror?
A: Infrared Light
B: Sound waves
C: Visible Light
D: Imaging Rays
Answer: C
Explanation: Mirrors reflect visible light.
Q5: What color is the shortest wavelength of visible light?
A: Blue
B: Green
C: Red
D: Orange
Answer: A
Explanation: Blue has the shortest wavelength in visible light.
Q6: Name two properties of light?
A: Color and Heat
B: Color and Reflection
C: Speed and Refraction
D: Speed and Reflection
Answer: B
Explanation: Light has properties of Color and Reflection.
Q7: What is the main difference between humans and robots?
A: Thinking Ability
B: Motor Skills
C: Sensory Ability
D: Artificial Intelligence
Answer: A
Explanation: Humans have thinking ability which robots lack.
Q8: What type of optical illusion makes stationary objects appear to be moving?
A: Autokinetic Effect
B: Distance Illusion
C: Motion Illusion
D: Object Illusion
Answer: A
Explanation: Autokinetic Effect is an optical illusion that makes stationary objects appear to be moving.
Q9: What type of optical illusion causes people to see stationary objects as being far away?
A: Autokinetic Effect
B: Distance Illusion
C: Motion Illusion
D: Object Illusion
Answer: B
Explanation: Distance Illusion causes people to see stationary objects as being far away.
Q10: What type of mater is most transparent to visible light?
A: Glass
B: Water
C: Air
D: Plastic
Answer: A
Explanation: Glass is the most transparent material to visible light.
Q11: What type of device is used to measure the speed of light?
A: Laser Detector
B: Light Meter
C: Spectrometer
D: Polarimeter
Answer: C
Explanation: A Spectrometer is used to measure the speed of light.
Q12: What type of material transmits light most effectively?
A: Glass
B: Water
C: Air
D: Plastic
Answer: A
Explanation: Glass transmits light the most effectively.
Q13: What type of material is the least transparent to visible light?
A: Glass
B: Water
C: Metal
D: Plastic
Answer: C
Explanation: Metal is the least transparent material to visible light.
Q14: What unit of measurement is used to measure the frequency of light?
A: Kilometers per second
B: Kilograms
C: Hertz
D: Meters
Answer: C
Explanation: Hertz is used to measure the frequency of light.
Q15: What type of lens is shaped like a cone?
A: Concave lens
B: Refracting lens
C: Converging lens
D: Convex lens
Answer: D
Explanation: A Convex lens is shaped like a cone.
Q16: What type of light source produces the most energy?
A: Sunlight
B: Fire
C: Electric Light
D: Fluorescent Light
Answer: A
Explanation: Sunlight produces the most energy.
Q17: What type of material is opaque to visible light?
A: Glass
B: Water
C: Metal
D: Plastic
Answer: C
Explanation: Metal is opaque to visible light.
Q18: What type of lens is shaped like a bowl?
A: Concave lens
B: Refracting lens
C: Converging lens
D: Convex lens
Answer: A
Explanation: A Concave lens is shaped like a bowl.
Q19: What type of light source produces the least amount of visible light?
A: Sunlight
B: Fire
C: Electric Light
D: Fluorescent Light
Answer: D
Explanation: Fluorescent Light produces the least amount of visible light.
Q20: What device is used to measure the brightness of light?
A: Laser Detector
B: Light Meter
C: Spectrometer
D: Polarimeter
Answer: B
Explanation: A Light Meter is used to measure the brightness of light.
