Advanced Physics Concepts Quiz: Springs, Gravity, and Electric Fields

In Hooke's Law (Fs = kx), what does the spring constant 'k' represent physically?

• The stiffness of the spring
• The maximum force the spring can withstand
• The mass of the spring
• The natural frequency of the spring

A spring is compressed by 5 cm and requires a force of 25 N. What is its spring constant?

• 100 N/m
• 500 N/m
• 5 N/m
• 250 N/m

Which equation correctly represents the potential energy stored in a spring?

• PEs = kx
• PEs = ½kx
• PEs = kx²
• PEs = ½kx²

If the distance between two masses is tripled, how does the gravitational force change?

• It becomes 1/3 of the original force
• It becomes 1/6 of the original force
• It becomes 1/9 of the original force
• It becomes 3 times the original force

In the gravitational force equation (Fg = G(m1m2)/r²), what is the significance of 'G'?

• It's a universal constant
• It varies with altitude
• It depends on the masses involved
• It changes with the distance between objects

If one mass is quadrupled and the other is halved, how does the gravitational force change?

• It doubles
• It remains the same
• It becomes twice the original force
• It becomes half the original force

In Coulomb's Law (Fe = k(q1q2)/r²), what happens to the electric force if both charges are tripled and the distance is doubled?

• It increases by a factor of 2.25
• It decreases by a factor of 2.25
• It increases by a factor of 9
• It decreases by a factor of 4

Which fundamental force is typically the weakest at atomic scales?

• Electromagnetic force
• Strong nuclear force
• Weak nuclear force
• Gravitational force

How does the work done in stretching a spring relate to its potential energy?

• Work done is twice the potential energy
• Work done is half the potential energy
• Work done equals the potential energy
• Work done is the square root of the potential energy

What happens to the period of a simple pendulum if its length is quadrupled?

• It doubles
• It quadruples
• It halves
• It becomes twice the square root of 2 times the original period