Page 1
2/21/2017
1
Tuesday, February 21Today – write in your agenda
Tuesday, Wednesday, Thursday – Complete Key Concepts Quiz #3 –
due Friday by 2:45pm
Socrative.com
SCIENCERICE
Sign in: last name first name (example: Young Kody)
Mission: We will be incredible
science students.
What is a force and how does it affect
the motion of an object?
Today we will…
-Identify the conditions under which an
object will continue with same motion
or change motion
• Go over key concepts quiz #2 from last week
• If you don’t understand a question, make sure
to ask (you may see these questions again)
• Read pages 41-44 about forces
Add to your table of contents
Date Title Page #
2/21 Forces notes
Forces
Page 2
2/21/2017
2
Forces
Net force
Unbalanced force
Balanced force
Look for the secret apple. As
soon as you see it, stand up and
say “Newton”
“Newton”
A force is a push
or a pull
Page 3
2/21/2017
3
Forces are measured in Newtons
(N)
Examples: Contact, gravity,
friction
Like velocity and acceleration,
forces are described not only by
how strong they are, but also by the
direction in which they act
Force is a vector
Net Force
•The overall force on an
object after all of the
forces have been added
together
A
C
B
The net force is pushing to the right
The net force is pushing to the left
The net force is 0
Page 4
2/21/2017
4
Unbalanced
Forces
Unbalanced Forces
•An unbalanced force can
cause an object to start
moving, stop moving, or
change direction (which is
acceleration)
Unbalanced Forces
•An unbalanced force
acting on an object will
change the object’s
motion
Unbalanced Forces
•When there is a net
force acting on an
object, the force is said
to be unbalanced.
A
B
The net force is pushing to the right
The net force is pushing to the left
Unbalanced Forces
Page 5
2/21/2017
5
Balanced Forces Balanced Forces
•Equal forces acting on an
object in opposite
directions
Balanced Forces
•Balanced forces acting on
an object will not change
the object’s motion
Balanced Forces
•When you add equal forces
exerted in opposite
directions, the net force is
zero
Page 6
2/21/2017
6
C The net force is 0
Balanced Forces
The forces cancel each other
Isaac Newton
As you listen, think
about how science
is a human
endeavor
Page 7
2/21/2017
1
Tuesday, February 21Today – write in your agenda
Tuesday, Wednesday, Thursday – Complete Key Concepts Quiz #3 –
due Friday by 2:45pm
Socrative.com
SCIENCERICE
Sign in: last name first name (example: Young Kody)
Mission: We will be incredible
science students.
What is a force and how does it affect
the motion of an object?
Today we will…
-Identify the conditions under which an
object will continue with same motion
or change motion
• Go over key concepts quiz #2 from last week
• If you don’t understand a question, make sure
to ask (you may see these questions again)
• Read pages 41-44 about forces
Add to your table of contents
Date Title Page #
2/21 Forces notes
Forces
Page 8
2/21/2017
2
Forces
Net force
Unbalanced force
Balanced force
Look for the secret apple. As
soon as you see it, stand up and
say “Newton”
“Newton”
A force is a push
or a pull
Page 9
2/21/2017
3
Forces are measured in Newtons
(N)
Examples: Contact, gravity,
friction
Like velocity and acceleration,
forces are described not only by
how strong they are, but also by the
direction in which they act
Force is a vector
Net Force
•The overall force on an
object after all of the
forces have been added
together
A
C
B
The net force is pushing to the right
The net force is pushing to the left
The net force is 0
Page 10
2/21/2017
4
Unbalanced
Forces
Unbalanced Forces
•An unbalanced force can
cause an object to start
moving, stop moving, or
change direction (which is
acceleration)
Unbalanced Forces
•An unbalanced force
acting on an object will
change the object’s
motion
Unbalanced Forces
•When there is a net
force acting on an
object, the force is said
to be unbalanced.
A
B
The net force is pushing to the right
The net force is pushing to the left
Unbalanced Forces
Page 11
2/21/2017
5
Balanced Forces Balanced Forces
•Equal forces acting on an
object in opposite
directions
Balanced Forces
•Balanced forces acting on
an object will not change
the object’s motion
Balanced Forces
•When you add equal forces
exerted in opposite
directions, the net force is
zero
Page 12
2/21/2017
6
C The net force is 0
Balanced Forces
The forces cancel each other
Isaac Newton
As you listen, think
about how science
is a human
endeavor
Page 13
2/21/2017
1
Tuesday, February 21Today – write in your agenda
Tuesday, Wednesday, Thursday – Complete Key Concepts Quiz #3 –
due Friday by 2:45pm
Socrative.com
SCIENCERICE
Sign in: last name first name (example: Young Kody)
Mission: We will be incredible
science students.
What is a force and how does it affect
the motion of an object?
Today we will…
-Identify the conditions under which an
object will continue with same motion
or change motion
• Go over key concepts quiz #2 from last week
• If you don’t understand a question, make sure
to ask (you may see these questions again)
• Read pages 41-44 about forces
Add to your table of contents
Date Title Page #
2/21 Forces notes
Forces
Page 14
2/21/2017
2
Forces
Net force
Unbalanced force
Balanced force
Look for the secret apple. As
soon as you see it, stand up and
say “Newton”
“Newton”
A force is a push
or a pull
Page 15
2/21/2017
3
Forces are measured in Newtons
(N)
Examples: Contact, gravity,
friction
Like velocity and acceleration,
forces are described not only by
how strong they are, but also by the
direction in which they act
Force is a vector
Net Force
•The overall force on an
object after all of the
forces have been added
together
A
C
B
The net force is pushing to the right
The net force is pushing to the left
The net force is 0
Page 16
2/21/2017
4
Unbalanced
Forces
Unbalanced Forces
•An unbalanced force can
cause an object to start
moving, stop moving, or
change direction (which is
acceleration)
Unbalanced Forces
•An unbalanced force
acting on an object will
change the object’s
motion
Unbalanced Forces
•When there is a net
force acting on an
object, the force is said
to be unbalanced.
A
B
The net force is pushing to the right
The net force is pushing to the left
Unbalanced Forces
Page 17
2/21/2017
5
Balanced Forces Balanced Forces
•Equal forces acting on an
object in opposite
directions
Balanced Forces
•Balanced forces acting on
an object will not change
the object’s motion
Balanced Forces
•When you add equal forces
exerted in opposite
directions, the net force is
zero
Page 18
2/21/2017
6
C The net force is 0
Balanced Forces
The forces cancel each other
Isaac Newton
As you listen, think
about how science
is a human
endeavor
Page 19
2/21/2017
1
Tuesday, February 21Today – write in your agenda
Tuesday, Wednesday, Thursday – Complete Key Concepts Quiz #3 –
due Friday by 2:45pm
Socrative.com
SCIENCERICE
Sign in: last name first name (example: Young Kody)
Mission: We will be incredible
science students.
What is a force and how does it affect
the motion of an object?
Today we will…
-Identify the conditions under which an
object will continue with same motion
or change motion
• Go over key concepts quiz #2 from last week
• If you don’t understand a question, make sure
to ask (you may see these questions again)
• Read pages 41-44 about forces
Add to your table of contents
Date Title Page #
2/21 Forces notes
Forces
Page 20
2/21/2017
2
Forces
Net force
Unbalanced force
Balanced force
Look for the secret apple. As
soon as you see it, stand up and
say “Newton”
“Newton”
A force is a push
or a pull
Page 21
2/21/2017
3
Forces are measured in Newtons
(N)
Examples: Contact, gravity,
friction
Like velocity and acceleration,
forces are described not only by
how strong they are, but also by the
direction in which they act
Force is a vector
Net Force
•The overall force on an
object after all of the
forces have been added
together
A
C
B
The net force is pushing to the right
The net force is pushing to the left
The net force is 0
Page 22
2/21/2017
4
Unbalanced
Forces
Unbalanced Forces
•An unbalanced force can
cause an object to start
moving, stop moving, or
change direction (which is
acceleration)
Unbalanced Forces
•An unbalanced force
acting on an object will
change the object’s
motion
Unbalanced Forces
•When there is a net
force acting on an
object, the force is said
to be unbalanced.
A
B
The net force is pushing to the right
The net force is pushing to the left
Unbalanced Forces
Page 23
2/21/2017
5
Balanced Forces Balanced Forces
•Equal forces acting on an
object in opposite
directions
Balanced Forces
•Balanced forces acting on
an object will not change
the object’s motion
Balanced Forces
•When you add equal forces
exerted in opposite
directions, the net force is
zero
Page 24
2/21/2017
6
C The net force is 0
Balanced Forces
The forces cancel each other
Isaac Newton
As you listen, think
about how science
is a human
endeavor
Page 25
2/21/2017
1
Tuesday, February 21Today – write in your agenda
Tuesday, Wednesday, Thursday – Complete Key Concepts Quiz #3 –
due Friday by 2:45pm
Socrative.com
SCIENCERICE
Sign in: last name first name (example: Young Kody)
Mission: We will be incredible
science students.
What is a force and how does it affect
the motion of an object?
Today we will…
-Identify the conditions under which an
object will continue with same motion
or change motion
• Go over key concepts quiz #2 from last week
• If you don’t understand a question, make sure
to ask (you may see these questions again)
• Read pages 41-44 about forces
Add to your table of contents
Date Title Page #
2/21 Forces notes
Forces
Page 26
2/21/2017
2
Forces
Net force
Unbalanced force
Balanced force
Look for the secret apple. As
soon as you see it, stand up and
say “Newton”
“Newton”
A force is a push
or a pull
Page 27
2/21/2017
3
Forces are measured in Newtons
(N)
Examples: Contact, gravity,
friction
Like velocity and acceleration,
forces are described not only by
how strong they are, but also by the
direction in which they act
Force is a vector
Net Force
•The overall force on an
object after all of the
forces have been added
together
A
C
B
The net force is pushing to the right
The net force is pushing to the left
The net force is 0
Page 28
2/21/2017
4
Unbalanced
Forces
Unbalanced Forces
•An unbalanced force can
cause an object to start
moving, stop moving, or
change direction (which is
acceleration)
Unbalanced Forces
•An unbalanced force
acting on an object will
change the object’s
motion
Unbalanced Forces
•When there is a net
force acting on an
object, the force is said
to be unbalanced.
A
B
The net force is pushing to the right
The net force is pushing to the left
Unbalanced Forces
Page 29
2/21/2017
5
Balanced Forces Balanced Forces
•Equal forces acting on an
object in opposite
directions
Balanced Forces
•Balanced forces acting on
an object will not change
the object’s motion
Balanced Forces
•When you add equal forces
exerted in opposite
directions, the net force is
zero
Page 30
2/21/2017
6
C The net force is 0
Balanced Forces
The forces cancel each other
Isaac Newton
As you listen, think
about how science
is a human
endeavor