speed of the object and the direction, (m/s, scalar)
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Acceleration:
Rate of change in velocity, (m/s², scalar)
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Deceleration:
opposite of acceleration. Still the rate of change in velocity.
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Terminal velocity:
maximum constant velocity that a falling object reaches
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Falling objects
Acceleration of free-fall for a body near to the Earth’s is constant. Smaller SA: less air resistance, falls faster, greater terminal velocity. Greater SA: more time accelerating, greater terminal velocity
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Mass
a measure of the number of particles in a substance. The bigger the mass, the more the substance resists a change in motion. (kg)
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Weight:
is a gravitational force. It is due to the Earth’s gravitational force pulling you towards it center. (N)
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Density:
is a measure of how close together the particles are.
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Forces
cause work to be done on an object. They cause changes in the size and shape of an object, or in its direction or speed of movement.
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Hooke's Law
When an elastic object - such as a spring - is stretched, the increased length is called its extension. The extension of an elastic object is directly proportional to the force applied to it:
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Newton’s first law
An object will remain at rest or in constant motion unless acted upon by an external force
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Other cards in this set
Card 2
Front
Velocity:
Back
speed of the object and the direction, (m/s, scalar)
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