Science: NL (Newton's Laws Flashcards
Why does the coin drop in the cup when the card is flicked away?
It drops in the cup because of gravitational potential energy, and pull force.
What held the coin back when the card was moved?
Gravitational Energy and force held the coin back when the card was moved.
What happens to the coin if the card is pulled slowly?
The coins get pulled on the card and fall onto the table.
Could we pull the card away rather than pushing it away?
Yes.
Where do we see this event applied in daily life?
When my papa is cooking pancakes, he pulls the frying pan away sometimes.
Simulation:
-Place a 200 kg refrigerator on the skateboard
-Set the Applied Force to 0 Newtons
-Press Play
-Watch the speed
What did you do to move the item?
We added force by applying 1 newton.
What do you need to do to move the item faster?
Apply more force by increasing the newtons.
When an object reaches maximum speed and force is no longer being applied, what happens?
The cart with both of the boxes on top of it rolls down and down and keeps rolling even though force is no longer applied. The speed is always the same when it has no force.
Simulation:
-Place a 200 kg refrigerator on the skateboard
-Set the Applied Force to 0 Newtons
-Press play
What Happens?
Nothing happens.
True or false?
A force of 1 Newton can move a 200 kg refrigerator
True
True or false?
A force of 50 newtons moves a 200 kg refrigerator the same speed as 1 Newton of force
False
True or false?
To slow an item down, you need an applied force in the OPPOSITE direction
True
True or false?
The ONLY way to move an item is to apply a force
True
True or false?
Once an item is moving, it does not stop
True
Create Your Own!
Create your own statements using the simulator. Include the amount of force needed to move, the mass of the item of your choosing, and speed the cart moves at.
Example: A force of 3 Newtons can move two 50 kg boxes at a speed of 0.8 m/s
Possible answers:
A force of 500 Newtons can move 1 200 kg refrigerator at the speed of 40.0 m/s
A force of 0 newtons can move a 50 kg box at a speed of 40.0 m/s
Newton’s 1st Law:
Objects at Rest
An object that is not moving is said to be at rest. A golf ball on a tee is an example of an object at rest. An object at rest will not move unless an unbalanced force is applied to it. The golf ball will keep sitting on the tee until it is struck by a golf club.
Objects in Motion
The second part of Newton’s first law can be hard to picture. On Earth, all objects that are moving eventually slow down and stop, even if we are no longer touching them. This is because there is always a net force acting on these objects. However, in outer space, Newton’s first law can be seen easily. In outer space, items will drift thousands of miles because there are no forces to slow them down.
Fill in the blanks:
An object at ____ stays at ____ unless acted on by an ______ force.
An object in _______ stays in ______ unless acted on by an _______ force.
An object at rest stays at rest unless acted on by an outside force.
An object in motion stays in motion unless acted on by an outside force.
Intertia:
1-List two synonyms
2-Type a definition
3-Look up a picture
1- Inaction, laziness
2-An object at rest stays at rest unless acted on by an outside force.
Friction:
1-List two synonyms
2-Type a definition
3-Look up a picture
1- Scraping, rubbing
2- The action of one surface or object rubbing against another object.
Create an ORIGINAL MEME with an image that clearly shows Newton’s first law in action. In your meme you must:
Use, or create an image or cartoon of an item being acted upon with an unbalanced force OR an object at rest
Are these criteria or constraints?
The meme must include:
The word INERTIA
Newton’s First Law
A creative explanation of HOW it represents the law
Are these criteria or constraints?
The meme must include:
The word INERTIA
Newton’s First Law
A creative explanation of HOW it represents the law
Ans. Criteria
Which would cause MORE damage?
Running at full speed in inflatable bumper balls or the head-on collision in cars?
The cars would cause more damage because they are heavier.
Which would fly FURTHER?
The football kicked by an NFL player or tossing a beach ball?
Kicked has more damage because it has more force.
Which is EASIER?
A dog pushing an empty shopping cart or a full shopping cart?
A dog pushing an empty cart because it can go faster.
Which is EASIER?
A man pushing a giant snowball or a child pushing his friend in a toy car?
A friend is being pushed by the guy because it is lighter and easier.
