Timed Challenge - Answer & Submit | GK Mania

1 What is the purpose of an ECG/EKG?

A) Measuring brain waves

B) Recording the heart's

C) Checking blood sugar

D) Testing lung function

2 What is Wien's displacement law?

A) All objects radiate equally

B) Hotter objects are dimmer

C) peak wavelength of radiation from a

D) Cooler objects radiate shorter waves

3 What is the quantum Zeno effect?

A) system

B) A fast quantum process

C) A type of radiation

D) A gravitational effect

4 What happens to the resistance of a metal when heated?

A) It stays the same

B) It increases

C) It decreases

D) It becomes zero

5 What is the Hall effect used for?

A) Heating rooms

B) Cooling engines

C) Measuring the

D) Generating electricity

6 What is the first law of thermodynamics?

A) Absolute zero is unattainable

B) Energy cannot be created or

C) Entropy always increases

D) Heat flows from cold to hot

7 What is the unit of work done?

A) Watt

B) Volt

C) Newton

D) Joule

8 What is specific heat capacity?

A) The density of a material

B) The maximum temperature of a substance

C) The boiling point of a liquid

D) amount of heat needed to raise one gram

9 What type of mirror is flat?

A) Plane mirror

B) Parabolic mirror

C) Convex mirror

D) Concave mirror

10 What is the relationship between voltage, current, and resistance?

A) V = IR

B) V = I/R

C) V = I + R

D) V = I − R

Quiz

1 What is the purpose of an ECG/EKG?

2 What is Wien's displacement law?

3 What is the quantum Zeno effect?

4 What happens to the resistance of a metal when heated?

5 What is the Hall effect used for?

6 What is the first law of thermodynamics?

7 What is the unit of work done?

8 What is specific heat capacity?

9 What type of mirror is flat?

10 What is the relationship between voltage, current, and resistance?

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Quiz

1 What is the purpose of an ECG/EKG?

2 What is Wien's displacement law?

3 What is the quantum Zeno effect?

4 What happens to the resistance of a metal when heated?

5 What is the Hall effect used for?

6 What is the first law of thermodynamics?

7 What is the unit of work done?

8 What is specific heat capacity?

9 What type of mirror is flat?

10 What is the relationship between voltage, current, and resistance?

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Quiz Results