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11-4-11 Science Study Guide
William's Science guide
a puch or a pull
Forces transfer ______________,
a force started moving it
If something is moving, you know ______________________________________.
How a force affects an object depends on the _______________________.
the amount of matter in an object.
Mass is measured in ___________ or __________________.
More force is needed to move an object with ______________________.
Less force is needed to move an object with ______________________.
a force stops it.
Once an object is moving, it moves until ___________________________.
when an object changes position or place
speeding up, slowing down, turning and stopping
A force is needed to change _______. Some examples are ____________, ______________________, ______________, and ______________.
a force created when things are rubbing against each other. It cannot be seen.
more friction there is
The harder things rub together the ________________________________.
Friction turns ___________ energy into ______________________.
a force that pulls objects to the surface of Earth
the amount of force gravity pulls on an object
an object's change in velocity over a period of time
an object's speed and direction
A larger _________ causes a ___________________________.
A ______________________ can be used to measure force.
size of the force
The numbers on the scale show the ______________________________.
metric unit of force. It is abbreviated N. It is a small amount of force.
3 laws of motion
Sir Isaac Newton was the scientist who wrote the ____________________________,
Law 1 - Law of Inertia
objects that rest stay at rest and objects in motion stay in motion unless they are acted upon by an outside force
an object's resistqance to a change in motion
the greater the mass of the object being accelerated the greater the amount of force needed
for ecery action there is an equal and opposite reaction