Newton's First Law
Another name for Newton's first law?
The law of inertia
A push or a pull
Forces are vectors, they have _______and _______
magnitude and direction
An object stretches what inside the scale
spring
unit of length
meter
The tendency of an object to resist a change in its motion
Inertia
combined forces form a net force of zero
balanced forces
Force is measured in
Newtons
force is measured in
Newtons
unit of time
second
given direction from a starting point to describe an object's position
reference direction
net force
What tool is used to measure force
spring scale
A spring scale measures
Force
unit of mass
kilogram
the motion of an object does not change if the net force on an object is zero
Newton's 1st Law
combined forces that form a net force that is not zero
unbalanced forces
Form a net force of zero
Balanced forces
You read the amount of force on a spring scale by
reading where the pointer moves
unit of temperature
Kelvin
Objects with greater mass have more
Inertia
a force that pushes or pulls by touching an object
contact force
cause a change in motion by changing the object's direction
Unbalanced forces
A spring scale measures __________and ________
mass and gravity
Unit of electric current
Ampere