Gravitational and Electrostatic Forces

The video tutorial covers graphing questions from a June 2011 Physics exam. It explains the relationships between gravitational force and distance, gravitational potential energy and height, and electrostatic force and electric field strength. The instructor uses formulas and hypothetical values to demonstrate how to solve these graphing problems.

What is the primary focus of the June 2011 Physics exam discussed in the video?

• True or false questions

• Multiple choice questions

• Graphing questions

• Essay questions

Which formula is used to determine the gravitational force between two masses?

• F = G(m1*m2)/r^2

• F = mv^2/r

• F = ma

• F = k(q1*q2)/r^2

How does the gravitational force change as the distance between the space probe and Earth increases?

• It increases linearly

• It remains constant

• It decreases exponentially

• It increases exponentially

What is the relationship between gravitational potential energy and height above the Earth's surface?

• It decreases with height

• It remains constant

• It increases linearly with height

• It increases exponentially with height

Which formula represents gravitational potential energy?

• PE = k(q1*q2)/r

• PE = 1/2 mv^2

• PE = mgh

• PE = G(m1*m2)/r^2

What happens to the gravitational potential energy as the height of an object increases?

• It decreases

• It remains the same

• It increases

• It fluctuates

What is the relationship between electrostatic force and electric field strength?

• They are exponentially related

• They are inversely related

• They are directly related

• They are unrelated

Which formula is used to calculate the electrostatic force on an electron in an electric field?

• F = ma

• F = qE

• F = G(m1*m2)/r^2

• F = k(q1*q2)/r^2

What happens to the electrostatic force as the electric field strength increases?

• It decreases

• It remains constant

• It increases

• It fluctuates

In the context of the video, what is a common application of parallel metal plates?

• Solar panels

• Picture tubes in old TVs

• Batteries

• Capacitors in circuits