Force
A force is which one of these?
A push or a pull
What is force?
A push or a pull
What is balanced force?
Equal forces acting on an object in opposite directions
Name the instrument used to measure the size of forces
Newton Meter
Force is measured in
Newtons
What is force measured in?
Newtons
What is unbalanced force?
When theres more force on one side than the other,motion.
What is a contact force?
When two objects have to be touching for a force to act
a force that slows things moving through air
air resistance
If an object starts to accelerate
an unbalanced force is acting on it
This force helps a ship float
buoyant force
What is motion?
change in position
a push or a pull
contact
this force needs to touch something to affect it
contact force
What WA can friction do to things like brake pads
damage it
formula of speed
distance divided by time
a force that tries to slow things that are moving through air
drag
What is weight?
effect of gravity on the mass of an object
what e is something that can be stretched but goes back to it's original place
elasticity and elactic force
a piece of equipment containing a spring that is used to measure forces
force meter
A force that slows or stops motion when objects rub together
friction
this force rubs things away
friction
What is friction?
friction is a force that occurs when two materials rub together
What is drag force?
friction that occurs when an object moves through a fluid, such as air or water
a force which pulls you down
gravity
the force of attraction between two objects The earth has a large force of gravity which pulls things towards it
gravity
what is g is a force that pulls things down to earth
gravity
what h and n can friction produce
heat
wheb forces are balanced, the total force
is zero
What is mass measured in?
kilograms or grams
What SD can friction do to moving objects
lose energy and slow down
they can attract and repel each other. they also attract things made of iron
magnetic
this force helps you to hold things on fridge doors
magnetism
How can friction be increased?
making the surface rougher
how do you calculate force
mass x acceleration
the unit of force
newton
Does mass change?
no
If a force is balanced, would there be motion?
no change in motion
What is speed?
speed is a measure of how far an object can travel in a certain ammount of time.
not moving
stationary
a force from water that pushes things up
support
What is mass?
the mass of an object is the amount of matter or stuff it contains.
when two forces working in opposite directions are not the same strenght
unbalanced force
what w is the amount of force with which gravity is pulling down on something
weight
The ammount of force on something from gravity, it is measured in newtons
weight force
What is a non-contact force?
when objects do not need to be touching for a force to act
does friction always slows things down
yes
