Physics Video Quiz

What are the two main tasks discussed in the video?

• Calculating mass and acceleration

• Identifying forces and their directions

• Measuring distance and time

• Calculating net work and change in velocity

Which force is not parallel to the displacement?

• Gravitational force

• Applied force

• Normal force

• Friction force

What is the angle between the applied force and the displacement?

• 38 degrees

• 90 degrees

• 45 degrees

• 180 degrees

What is the formula used to calculate work done by a force?

• Mass times acceleration

• Force times distance times cosine of theta

• Velocity times time

• Force times distance

Why do gravitational and normal forces do no work on the object?

• They are parallel to the displacement

• They are stronger than other forces

• They are at 90 degrees to the displacement

• They are weaker than other forces

What is the net work done on the object?

• 97 joules

• 472 joules

• 375 joules

• 0 joules

What theorem is used to determine the change in velocity?

• Newton's First Law

• Pythagorean Theorem

• Conservation of Energy

• Work-Energy Theorem

What is the initial velocity of the object?

• 15 m/s

• 10 m/s

• 0 m/s

• 5.94 m/s

How is the final velocity calculated from the work done?

• By multiplying work by mass

• By taking the square root of two times work divided by mass

• By adding work to initial velocity

• By dividing work by distance

What is the final velocity of the object?

• 20 m/s

• 15 m/s

• 10 m/s

• 5.94 m/s