6. Intro to Forces (Dynamics)

Tensional forces normally cause which one of the following effects on an object?

Which of the following forces acts directly on a car moving along a flat road?

Which of the following is a characteristic of $P$-waves?

Which of the following devices is commonly used to measure the tension in a pulling force in physics experiments?

Which of the following is not a component of a lever?

When wearing a backpack, what type of force does the backpack exert on a person's back and hips?

Which type of stress is primarily responsible for the formation of fault-block mountains?

Which of the following does not have an effect on the electrical resistance $R$ of a wire?

When you break a bar magnet in half, which of the following best describes what happens to the magnetic poles of the resulting pieces?

Shot pellets and a bullet are examples of which basic component in a free body diagram?

If a wrench has six forces of equal magnitude acting on it, each force applied at equal angles around the center and all pointing outward from the center, what is the net force acting on the wrench?

A small car and a large truck have a head-on collision. Which of the following statements is true?

Which statement best describes the difference between balanced and unbalanced forces acting on an object?