Science Book Interactive Notebook Force and Motion Glossary
Pencil Listening ears
Slide 4
Get your Force and Motion Glossary out! Find the word: Motion
Write the definition: The action of changing place or position
(moving).
Slide 5
Motion is everywhere: You move everyday in one way or another.
Walking down the hallway Roll over in bed Heart Beats Eyelids blink
up and down
Slide 6
With your shoulder partner, think of all the ways you see
motion everyday!!!! Create a list to be turned in at the end of
class! Write your names on it. This is your ticket out the
door.
Slide 7
Slide 8
Slide 9
Slide 10
Slide 11
Slide 12
Slide 13
Slide 14
Motion is caused by force. What is force ?
Slide 15
Get your Force and Motion Glossary Out! Find the word: Force
Write the definition: Force is a push or pull that acts on an
object.
Slide 16
Can there be different kinds of motion? YES!!!!
Slide 17
Objects can travel in a straight path. Baseball player racing
to home plate. Trains on a track.
Slide 18
Objects can travel in a curved path or circular motion. A car
turning a corner. The Earth moving around the sun.
Slide 19
Objects can travel back and forth. A guitar player plucks a
guitar string. A rubber band that has been plucked.
Slide 20
Get your Force and Motion Glossary out! Find the word: Speed
Write the definition: Speed is the rate at which an object changes
position.
Slide 21
Speed is the main way we describe motion. Speed is how far an
object moves during a certain amount of time. Average speed=
Distance/ Time
Slide 22
If I say: The train traveled 60 miles per hour (mph). This
means: The train traveled a distance of 60 miles in one hour. If I
say: Bob types 50 words per minute (wpm). This means: Bob can type
50 words in one minute of time.
Slide 23
With your shoulder partner, think of other speeds you have
heard of. On the same paper as your first list create a second list
to be turned in at the end of class! Write your names on it. This
is your ticket out the door.
Slide 24
The speed of an object depends on the force applied to the
object and the mass of the object. Which do you think would have a
faster speed? A 2lb rock falling off of the Empire State building.
A 10lb rock falling off of the Empire State building.
Slide 25
A 10lb rock falling off of the Empire State building. The rock
with the larger mass would fall more quickly than a smaller
rock.
Slide 26
An object with a greater mass will require a greater force to
move it. It will take more force to move a car than a book. Why?
The masses are very different. The car has a much greater
mass.
Slide 27
If you have two objects with the same amount of mass, but a
stronger force is applied to one? Which will travel fastest? The
object with the greater force applied will travel faster. The force
applied to an object, affects its speed.
Slide 28
Slide 29
Gravity pulls every object on Earth towards the Earths center.
Because of gravity, the Earth is pulling on objects without even
touching them. An objects weight is the amount of gravitational
force between it and the Earth.
Slide 30
On your sheet of paper answer the following question: If we
were to travel to other planets, would our weight change? Why?
Slide 31
The gravitational pull of an object to the earth is called
weight. We measure weight with a scale. Where have you seen a scale
before? The scales we use in our classroom are called spring
scales, because they use a spring to determine the weight of an
object.
Slide 32
Magnetism is a force that pushes and pulls on other objects.
This force is greatest at the magnets poles. Materials that are
attracted to magnets, will pull towards the magnet.
Slide 33
The north pole of one magnet will attract the south pole of
another magnet. Opposites attract!!!! The north pole of two magnets
will push away. So will two south poles!
Slide 34
Slide 35
Turn to your shoulder partner and discuss: How do you think
static electricity could be a force? You have 1 minute!
GOOOOOO!
Slide 36
Slide 37
Slide 38
Slide 39
Slide 40
Slide 41
Slide 42
Slide 43
Static electricity causes a build up of charges. Just like with
magnets, opposites attract! Positive charges are attracted to
negative charges and can cause a pull between the two objects. Also
like magnets, like charges repel from each other. This also causes
motion as the two objects move away from one another.
Slide 44
Friction is the force that results when two materials rub
against each other. Friction slows down the motion of an object or
it stops it from starting to move.
Slide 45
Walk around in your shoes. Slide your feet across the floor.
What does it feel like? Take off your shoes! Now slide around the
floor in your socks. Is there a difference?
Slide 46
Why do you think there is a difference when you rub your feet
on the carpet and when you rub them on the floor? What could cause
this difference? Would it be easier to run in your socks or in your
shoes? Why?
Slide 47
Friction causes motion to slow or stop or not move at all.
Friction is a force! The texture, shape, or speed of one object can
affect the amount of friction with another object.
Slide 48
What do you think of when you hear the word work? To most
people, work reminds them of a job or career. The scientific
meaning of work is much different. The energy used when a force
moves an object.
Slide 49
If the force applied to an object does not make the object
move, then no work has been done. Holding an object in place can
require a force, but since the object did not move, no work is
done.