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Forces, Push, Pull, Gravity, Twist, Electrostatic, Magnetism, Normal,…
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Push
A. A push force is a force that moves an object away from another object.
B. Push is one of the most common forces as any force is really eirther push or pull.
C. An example is if someone was to push open a door.
If someone was to shove a person over onto the floor.
D.
E1. it would depend how hard you hit the ball with the bat. it would depned on how much weight the ball is.
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E3. no it cant. this is because for something to be pushed you need to use something to push it down like your hand or foot.
Pull
A. A pull force is a force which moves an object towards another object.
B. Pull is the opposite of push
C. when you pull a door open.
A car pulling a caravan.
Pulling the covers over your bed
D.
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Gravity
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A. gravitational forces are forces of attraction. Every object in the universe that has mass exerts a gravitational pull, or force, on every other mass.
B. Gravity makes waves that move at light speed
Gravity and weight are not the same thing
Gravity is by far the weakest force we know
C. The force that causes a ball you throw in the air to come
down again.
The force that causes the moon to revolve around the
Earth.
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E1. When the sun is furthere away from a planet that lanet would be cold and dark but if it was closer to the sun then the planet would be hotter.
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Twist
A. A twist force is a force which turns something in a circle. it also changes the shape of an object if this force is applied to it.
B. twist is a contact force.
C. twisting molding clay
twisting a lid of a bottle cap
twisting a shower handle
D.
E1. you can. an example of this would be when you try to open a nail polish container you need to first push the lid down and then twist the lid to open it.
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Electrostatic
A. An electrostatic force is a force which pulls or pushes on objects without touching them. Rubbing some materials together can result in something called 'charge' being moved from one surface to the other. Charged objects pull on other uncharged objects and may either push or pull on other charged objects. B. electrostatic forces what discovered by Charles-Augustin de Coulomb C. Lightning (but in massive form) rubbing your hair on a balloon
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Magnetism
A. The force of magnets, called magnetism, is a basic force of nature, like electricity and gravity. Magnetism works over a distance. This means that a magnet does not have to be touching an object to pull it. for something to be pulled by a magnet it has to be made out of metal.
B. Magnets always have two poles -- even if you cut them in half.
The most powerful magnet in the universe is actually a star
called a magnetar.
C. Credit cards & ATM bank cards.
Navigation via the compass.
Refrigerator magnets- artwork & messages.
D.
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Normal
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A. A normal force is a force that supports the weight of an object on a surface and acts in the opposite direction of gravity. B. The normal force on a object is always at a right angle to the surface the object is on. C. Walking on the ground
book resting on a table
Friction
A. Friction is the resistance of motion when one object rubs against another. Anytime two objects rub against each other, they cause friction. Friction works against the motion and acts in the opposite direction. B. did you know that most factory lubes usually test as very high friction. C. Rubbing your hands together Two cards in a deck sliding against each other A vegetable drawer sliding against the holder in the fridge
D.
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