Principles of Technology Final Exam 2025

1. Who proposed the theory of gravitational force

• a) Henry Cavendish
• b) Albert Einstein
• c) Isaac Newton
• d) Galileo Galilei

2. According to Newton's theory, what do all objects with mass do?

• a) Repel each other
• b) Exert a force on each other
• c) Remain stationary
• d) Lose mass over time

3. What is one of the main reasons planets remain in their orbits?

• a) Electromagnetic force
• b) Strong nuclear force
• c) Gravitational force
• d) Weak nuclear force

4. Gravitational force is equal to an object's

• a) Mass
• b) Density
• c) Acceleration
• d) Volume

5. Objects with which characteristic exert a greater gravitational force?

• a) Smaller mass
• b) Higher density
• c) Larger mass
• d) Lower volume

6. What are the two most important factors in determining gravitational force?

• a) Speed and time
• b) Mass and distance
• c) Velocity and acceleration
• d) Density and volume

7.The equation for gravitational force mentioned in the text is:

• a) F=ma2
• b) F=mv
• c) Fg=ma
• d) F=m/a

8. In the equation Fg=ma, what does 'm' represent?

• a) Acceleration
• b) Force
• c) Mass
• d) Time

9. In the equation Fg=ma, what does 'a' represent?

• a) Mass
• b) Force
• c) Acceleration
• d) Distance

10. What did Newton propose to represent a universal gravitational constant?

• a) 'c'
• b) 'g'
• c) 'G'
• d) 'N'