A book is lying at rest on a table. The book will remain there at rest because:

There is no net force on the book.

You kick a smooth flat stone onto a frozen pond. It slides, slows down, then stops. You think:

A net force acted on it all along

A large truck sits on a frozen, frictionless lake. A fly smashes into the window. What happens?

It moves backward at constant speed

Consider a cart on a frictionless table. Once the cart is given a push, what will happen?

Continue with constant velocity

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Chapter 4 Concepts

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A quiz of Applying Newton's Laws and uniform circular motion. #universityphysics #physics #newtonslaws #uniformcircularmotion

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Questions 12

Answers

1
A book is lying at rest on a table. The book will remain there at rest because:
There is a net force but the book has too much inertia
It does move, but too slowly to be seen.
There is no net force on the book.
There are no forces acting on it at all.
2
You kick a smooth flat stone onto a frozen pond. It slides, slows down, then stops. You think:
A net force acted on it all along
The stone has a natural tendency to be at rest
The force pushing the stone finally stopped pushing it
No net force acted on the stone
3
A large truck sits on a frozen, frictionless lake. A fly smashes into the window. What happens?
It accelerates backward
The truck is too heavy, it just sits there
It moves forward at constant speed
It moves backward at constant speed
4
A hockey puck slides on ice at constant velocity. What is the net force acting on the puck?
More than its weight
Equal to its weight
Zero
Depends on the speed
5
A small car collides with a large truck. Which experiences the greater impact force?
Depends on the velocity of each
The car
The truck
Both the same
6
If an object is experiencing a net force, its velocity is
zero
changing
not enough information
constant
7
In order to get an object moving, you must push it harder than it pushes back on you.
False
True
8
Answer the question in the picture.
None of the above
No net force acted on the box
The force of friction pushed it off
The truck went into reverse by accident
9
Consider a cart on a frictionless table. Once the cart is given a push, what will happen?
Slowly come to a stop
Continue with constant acceleration
Immediately come to a stop
Continue with constant velocity
10
What would have to be done in order to have the cart continue with constant acceleration?
Push the cart continuously
Push the cart longer before release
Push the cart harder before release
Change the mass of the cart
11
Answer the question on the picture
100m
250m
150m
200m
12
Answer the question on the picture.
8s
4s
2s
16s

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