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Force and Motion Chapter 8

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Questions and Answers

What is the fundamental concept that explains why an object's speed changes over time?

Velocity

Motion

Acceleration

Force (correct)

What is the most common way to experience and understand force in everyday life?

Through hearing

Through smelling

Through muscular effort (correct)

Through tasting

What is the natural state of an object, according to ancient beliefs?

Motion

Deceleration

Rest (correct)

Acceleration

What is the primary way to describe force?

By feeling its effect on an object Signup and view all the answers

What is the relationship between force and motion?

Force can both cause and change motion Signup and view all the answers

What is the primary goal of this chapter?

To describe the nature of force and motion Signup and view all the answers

What is the primary reason for an object to change its state of motion?

A force is applied to the object Signup and view all the answers

What happens to an object when two opposite forces of equal magnitude are applied to it?

It remains stationary Signup and view all the answers

What is the result of applying a force on a spring, as shown in Fig. 8.2?

The spring expands Signup and view all the answers

What is an example of a force changing the shape of an object?

A spherical rubber ball becoming oblong Signup and view all the answers

What happens to an object when a force is applied to it from both sides with equal forces?

The object remains stationary Signup and view all the answers

What is the direction of motion of an object when two opposite forces of different magnitudes are applied to it?

The direction of the greater force Signup and view all the answers

What is the fundamental principle behind the third law of motion?

When one object exerts a force on another, the second object instantaneously exerts an equal and opposite force back Signup and view all the answers

What happens when you kick a football and collide with a player of the opposite team?

Both players apply a force to each other, and both feel hurt Signup and view all the answers

What is the relationship between the forces exerted by two spring balances connected together?

The forces exerted by both balances are equal but opposite in direction Signup and view all the answers

What is the correct statement about action and reaction forces?

Action and reaction forces always act on different objects Signup and view all the answers

What is the alternative statement of the third law of motion?

To every action, there is an equal and opposite reaction Signup and view all the answers

What is a crucial point to remember about action and reaction forces?

They always act on different objects, simultaneously Signup and view all the answers