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SFS science final

stack 1

amount of ---- in an object matter
a push or pull force
when an object speeds up, slows, down. or turns acceleration
tendency of an object to resist a change in its motion intertia
a measure of how difficult it is to stop a moving object momentum
the SI metric unit of force and weight newton
represents force in science arrows
unequal force = movement + occurs unbalanced force
equal forces - no movement force
acceleration = (sf - si) time acceleration formula
What does acceleration change? direction and speed
What does momentum measure? how hard it is to stop an object
when your speed decreases Ex. when your speed changes from 10 mph to 6mph negative acceleration
Explain how mass and weight are affected when you travel to the moon? Mass is constant and weight changes because there is less gravity on the moon
a = sf + sli t word problems - acceleration
evidence of the pull of gravity between the moon and the earth (rise and fall of water) tides
a truck and a bicycle have the same momentum. which one would be harder to stop? the truck because the mass and inertia are greater
list 3 examples of forces that cannot be seen magnetic, electric, gravity
to have momentum what must an object be doing moving
3 ways to accelerate speed up, slow down, change direction
Created by: lyncall