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Science
Motion and Force Grade 6
23
Science
6th Grade
06/07/2022

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Term
Motion
Definition
The state in which one objects distance from another is changing.
Term
noncontact force
Definition
a force applied to an object whether it touches the object or not
Term
What are three examples of noncontact forces?
Definition
Gravity, magnetism & electrical forces
Term
What is the difference between balanced and unbalanced forces?
Definition
two forces acting on an object are equal in strength and in opposite directions are balanced forces. Two forces that are not equal in strength, the pull is stronger than the friction there are unbalanced
Term
What are some examples of a balanced and unbalanced force?
Definition
unbalanced: riding a skateboard, walking
balances: lying down, floating in water
Term
What is the net force of an object?
Definition
The overall force of an object when all the individual forces acting on it are added together
Term
What is Newton's First Law of Motion?
Definition
states that an object at rest will remain at rest unless acted upon by a nonzero net force
Term
What is another name for Newton's First Law?
Definition
the law of inertia.
Term
What is inertia?
Definition
resistance to change in motion
Term
Explain Newton's Second Law of Motion.
Definition
the size and direction of a net force equals the mass X acceleration
Term
friction
Definition
the force that two surfaces exert on each other when they rub against each other
Term
reference point
Definition
a place or object used for comparison to determine if an object is in motion
Term
The SI unit of force
Definition
newton
Term
speed
Definition
the distance an object travels per unit of time
Term
4 types of friction
Definition
static friction, sliding friction, rolling friction, and fluid friction.
Term
Newton's 3rd law of motion
Definition
If two bodies exert forces on each other, these forces have the same magnitude but opposite directions.
Term
law of universal gravitation
Definition
STATES that the force of gravity acts between all objects in the universe that have mass
Term
newton
Definition
a unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second
Term
Formula for Force
Definition
Net force= Mass X acceleration
Term
velocity
Definition
speed in a given direction
Term
mass
Definition
the measure of the amount of matter in an object
Term
weight
Definition
the measure of the force of gravity on an object
Term
velocity
Definition
speed in a given direction
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