Exam (elaborations)
Alberta Science 10-Physics (all sections) Questions and Answers 2024
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Alberta Science 10-Physics (all sections)
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Alberta Science 10-Physics (all sections)Uniform Motion - answer An object that moves at a constant speed in the same
direction.
Speed - answer A uniform motion that involves a change in distance over a timed
interval. V=change d /change time
Scalar - answer A scalar quantity has magnitude(how much) but no direction.
Ex: time, mass, distance, speed
Vector - answerA vector quantity has magnitude and direction.
Ex: displacement, velocity, force
Position - answerThe separation between a a reference point and the object.
Displacement - answerAn object's position in relation to where it started. It is a change
in position from a reference point. Vector Quantity
Determining the direction of a Vector Quantity - answerWe don't always use the
direction when using vector quantities in formulas . Instead positives and negatives are
used.
Positives
Forward
Up
Right
East
North
Negatives
Backward
Down
Left
West
South
Velocity - answerA change in position during a timed interval. A vector quantity means it
includes both rate of motion and the direction
, Acceleration - answerA change in velocity during a specific time interval. Scalar
Quantity. Measured in meters per second squared (m/s2). A= change in velocity/change
in time
Acceleration (Positive) - answer Both the change in magnitude and change in velocity
are both negatives or both positives.
Acceleration (Negative) - answerThe change in magnitude and the change in velocity
are either a negative and a positive or a positive and a negative.
Energy - answerability to do work
Change in Energy =Work
Joules=Joules
Work - answer Transfer of energy from one object to another, or from on form to
another. Measured in Joules (J). W=Fd; 1J=1Nm
3 conditions: there must be movement, force, and the force and distance must be in the
same direction.
Laws of Force - answer-When forces acting on an object are balanced the object does
not move.
-To lift up an object at a constant speed you must first apply a force equal to that of the
force of gravity applies.
-If the forces acting on a object are different, the object will accurate (move). The
direction the object moves is the direction of the stronger force.
Cause of object slowing down - answerFriction
Speed formula - answerV=d/t
Velocity=Distance/Time
Velocity formula - answer-> ->
V=d/t
Velocity=Displacement/Time
Acceleration Formula - answera=v/t
Acceleration=Velocity/Time
a=Vf-Vi/t
Acceleration= Velocity Final-Velocity Initial/Time
Work Formula - answerW=Fd
Work=Force/Distance
W= Joule= N*m
(N= kg*m/s squared)
Force Formula - answerF=mxa
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