Force:
Every time you move something, use your pencil, or walk, you are using force.
These forces are examples of everyday life because that is what a force is,
everyday life. Every day you use force to make your life easier. Sometimes it
is hard to understand how forces help you.
Newton’s First Law of Motion:
Newton’s first law of motion explains inertia, another force. Inertia helps explain
why things stay where they are. Think about how many times you wouldlose
your papers if inertia didn’t make it stay where you put it.
Newton’s Second Law of Motion:
Sir Isaac Newton thought that you could find the acceleration of an object, so
he wrote this law to explain how. It states that acceleration equals force divided by mass.
Friction:
Friction is a force that slows things down. This force can be both useful and harmful. Friction has two
affects on a capsule reentering Earth’s atmosphere.
The friction between the capsule and the atmosphere cause extreme heat. This is the harmful
part. After the capsule comes through the atmosphere it uses parachutes to
slow it down. The parachutes use air resistance, a type of friction, to
slow it down. Without fiction the capsule would not slow down.
Gravity:
You may want to become an astronaut so you could float around, but do you know why you would float? The reason
is there is no gravity in space. Gravity is the force that pulls you towards Earth.
Newton’s Third Law of Motion:
Newton’s third law says that for every action there is an equal and opposite
reaction. Rockets are propelled upward because of a reaction force. The exhaust
gases cause a reaction force that pushes the rocket into the air.
Momentum:
Momentum is a force that makes it hard to stop an object. If you were running, you would have momentum.
Because of this, if you tried to stop really fast, you might fall because the momentum wants you to keep going
forward.
Every time you move something, use your pencil, or walk, you are using force.
These forces are examples of everyday life because that is what a force is,
everyday life. Every day you use force to make your life easier. Sometimes it
is hard to understand how forces help you.
Newton’s First Law of Motion:
Newton’s first law of motion explains inertia, another force. Inertia helps explain
why things stay where they are. Think about how many times you wouldlose
your papers if inertia didn’t make it stay where you put it.
Newton’s Second Law of Motion:
Sir Isaac Newton thought that you could find the acceleration of an object, so
he wrote this law to explain how. It states that acceleration equals force divided by mass.
Friction:
Friction is a force that slows things down. This force can be both useful and harmful. Friction has two
affects on a capsule reentering Earth’s atmosphere.
The friction between the capsule and the atmosphere cause extreme heat. This is the harmful
part. After the capsule comes through the atmosphere it uses parachutes to
slow it down. The parachutes use air resistance, a type of friction, to
slow it down. Without fiction the capsule would not slow down.
Gravity:
You may want to become an astronaut so you could float around, but do you know why you would float? The reason
is there is no gravity in space. Gravity is the force that pulls you towards Earth.
Newton’s Third Law of Motion:
Newton’s third law says that for every action there is an equal and opposite
reaction. Rockets are propelled upward because of a reaction force. The exhaust
gases cause a reaction force that pushes the rocket into the air.
Momentum:
Momentum is a force that makes it hard to stop an object. If you were running, you would have momentum.
Because of this, if you tried to stop really fast, you might fall because the momentum wants you to keep going
forward.
References
"Force and Motion." ThinkQuest : Library. N.p., n.d. Web. 27 Oct. 2012. <http://library.thinkquest.org/CR0215468/force_and_motion.htm>.