Practice Questions
1. Which of the following force is the strongest force in nature?
a) Electromagnetic force
b) Nuclear force
c) Weak force
d) Gravitational force
Answer: b
Explanation: Nuclear force is the strongest force in the four fundamental forces of nature. The strong nuclear force is also known as strong nuclear interaction.
2. Who is the Father of Experimental Physics?
a) Galileo
b) Newton
c) Albert Einstein
d) Neils Bohar
Answer: a
Explanation: Galileo is the father of Experimental Physics. Galileo Galilei is an Italian philosopher who has made major contributions to the fields of physics, astronomy, scientific methods development, and specifically in the law of inertia.
3. Which branch of science deals with nature and natural phenomena?
a) Biology
b) Sociology
c) Physics
d) Virology
Answer: c
Explanation: The branch of science that focuses and deals with nature and natural phenomena is called physics. Physics deals with the structure of matter which includes heat, light, radiation, sound, and electricity.
4. Atomic and molecular phenomena are dealt with by
a) Applied Mechanics
b) Quantum Mechanics
c) Newtonian Mechanics
d) Fluid Mechanics
Answer: c
Explanation: Quantum Mechanics describes the atomic and molecular properties. Newtonian Mechanics describes Newton’s law. Applied Mechanics takes care of engineering problem applications.
5. What are the steps of the scientific method?
a) Make an observation and create a hypothesis
b) Test the hypothesis and analyze results
c) Draw Conclusions and report the results
d) All of the mentioned
Answer: d
Explanation: The steps of the scientific method are:
- Make an observation
- Create a hypothesis
- Test the hypothesis
- Analyze results
- Draw Conclusions
- Report the results
6. Which of the following force is the weakest force in nature?
a) Gravitational force
b) Nuclear force
c) Electromagnetic force
d) Strong nuclear force
Answer: a
Explanation: Gravitational force is the weakest force in the four fundamental forces of nature. The nuclear force is the strongest force in nature.
7. According to Einstein’s theory, mass and energy are related as
a) E = mc
b) E = mc2
d) E = m/c2
View Answer
Answer: b
Explanation: According to Einstein’s theory, mass and energy relation is E = mc2. It states a universal equivalence between mass and energy.