17 terms

# Science

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force
any push or pull
mass
is the amount of matter in an object.
weight
is the measure of gravitational pull on an object
inertia
an object at rest stays at rest, an object in motion stays in motion. more mass=more inertia
How does the slop of the ramp affect the distance a car travels when it is released?
The greater the slope of the ramp the greather the car's velocity.
speed
is the distance an object travels in a certain amount of time S=D/T
momentum
is the measure of an amount of force moving objects have p=mv
What is Newton's third law?
Every ation there is an equal and opposite reaction
Why is it crucial to know the volocity of a tornado?
Velocity tells us the speed and direction.
acceleration
Is the rate at which the velocity of an object changes
What is a newton?
It is the unit of measurement for force. It is the force required to accelerate a 1Kg mass at s rate os 1 m/s2.
What is momentum?
P=mv
To find acceleration?
A=(Vf-Vi)/t
Potential energy
(mass)(acceleration due to gravity)(height)
Kinetis energy
K.E.=1/2(mass)(velocity)2
Give two examples of kinetis and potential energy?
K.E.-thermel energy (heat) and sound.
P.E.-gravitational potente energy and glastic potential energy.
Calculate how much force is required?
F=mass*acceleration
F=60Kg*10m/s2
F-600 N