hosted by your phun physics teacher · 5,3 f net = 70n-10n = 60n m=(60n)/(4m/s²) =15kg a box is...
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![Page 1: Hosted by Your Phun Physics Teacher · 5,3 F net = 70N-10N = 60N m=(60N)/(4m/s²) =15kg A box is being pulled with an applied force of 70N and there’s a friction force of 10N. If](https://reader033.vdocuments.mx/reader033/viewer/2022060406/5f0f6fc67e708231d4442785/html5/thumbnails/1.jpg)
Hosted
by
Your Phun Physics Teacher
![Page 2: Hosted by Your Phun Physics Teacher · 5,3 F net = 70N-10N = 60N m=(60N)/(4m/s²) =15kg A box is being pulled with an applied force of 70N and there’s a friction force of 10N. If](https://reader033.vdocuments.mx/reader033/viewer/2022060406/5f0f6fc67e708231d4442785/html5/thumbnails/2.jpg)
100 100
200 200
400 400
300
400
Forces Concepts Math Misc.
300 300 300
200
400
200
100
500 500 500 500
100
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Row 1, Col 1
30 N (up)
A book sits on a table and applies
a force of 30N to the table
(down). How much force is
applied by the table on the book?
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1,2
True
True or False: Weight is
equal to the force due to
gravity acting on an
object.
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1,3
.5kg x 9.8m/s² = 4.9N
A 0.5kg pear falls from a
tree. Calculate the force
acting on the falling pear.
(Ignore air resistance.)
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1,4
True; Force has both magnitude
(amount) AND direction.
True or False: Force is
a vector quantity.
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2,1
5N
A force of 15N and a force
of 20N are acting on an
object in opposite directions.
The net force is…
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2,2
Acceleration is the same, 9.8 m/s².
Which has a greater
acceleration due to gravity, a
tennis ball or a steel ball of
the same size?
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2,3
m=(90N)/(9.8m/s²)
=9.2kg
What’s the mass of a
bicycle that weighs 90N?
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2,4
9.8 m/s²
A ball is thrown straight up.
At the top of its path, the
ball’s acceleration is…
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3,1
True; if there was a net force
acting on the object, then that
object would have to be accelerating.
True or False: If an object is
moving with constant
velocity, then the object has
no net force acting on it.
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3,2
Neither! Their masses are the same.
Which has the greater
mass, 20kg of feathers or
20kg of bricks?
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3,3
Fnet=(5kg)(4m/s²)
=20N
An object with a mass of 5kg
accelerates at 4m/s². What is
the net force applied?
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3,4
Which ball has a greater
force due to gravity, a tennis
ball or a steel ball of the
same size?
The steel ball.
Force due to gravity = (mass)(9.8 m/s2)More mass means more force due to gravity
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4,1
(kg) x (m/s²)
What two units, when
multiplied together, equal a
Newton?
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4,2
True.
Fbug = Fwindshield
mbug abug = mwindshield awindshield
True or False: A bug hits a car
windshield. The acceleration of
the bug is much greater than the
acceleration of the windshield.
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4,3
a=(100N)/(40kg)
=2.5m/s²
A 40kg object
experiences 100N of net
force. What is the object’s
acceleration?
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4,4
False:
Objects moving at a constant
velocity have a net force of zero.
True or False: Objects move
only when a net force is
exerted on them.
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5,1
False:
The acceleration doubles.
True or False: If the force
acting on a cart doubles, the
cart’s acceleration
quadruples.
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5,2
The acceleration is cut in half
(half as much acceleration).
A truck is moved by a force.
Suddenly, a concrete block is
dropped onto the truck so its
mass doubles. What happens to
the truck’s acceleration?
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5,3
Fnet = 70N-10N = 60N
m=(60N)/(4m/s²)
=15kg
A box is being pulled with an
applied force of 70N and there’s a
friction force of 10N. If the
acceleration of the object is 4m/s²,
what is the mass of the box?
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5,4
False:
Friction resists an
object’s motion.
True or False: Friction
causes an object to move.