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car moving...carpet has more friction
rough
...slows movement but we sometimes find it useful
Friction
...with a rougher surface increase friction between the tyre and a slippery surface.
Tyre
We use...to find a ...
scales, mass
Frction can act between other states of...too
matter
what forces act on moving car?
weight, friction, driving force, air resistance
Streamlined cars and boats reduce...
air resistance
Drag ...the speed at which objects move.
reduces
in a parachute jump the size of the air resistance force ...when the parachute opens.
increases
water resistance and air resistance are sometimes called ...forces.
drag
friction is ...
force.
in an airplane the force of air resistance acts in the...
opposite direction
causes friction between a solid surface and the air it is moving through.
...
A car moving on a smooth surface has...
less friction
an object moving on smooth science has ...
lower friction
car moving on ...carpet has more ...
rough, friction
is an invisible contact force that acts on objects to slow them down.
friction
Forces are measured in...
newtons
The gravitational force on the moon is...
lower
Weight is a force with which ...acts on an object.
gravity
...is a force
weight
We measure in ...
grams and kilograms
The amount of matter in an object is called its...
mass
All objects are made of ...
matter
gravitational forces keep all the planets in...around the...and the Earth.
orbit, Sun and the Moon
other planets have gravitational forces of different...
strength
gravity is the ...force that pulls everything down towards the Centre of the Earth
invisible
The force of gravity is weaker...
moon
Gravity is an invisible force that ...everything down.
pulls
what is the non-contact force (the word starts with M)
Magnetic force
Name the force that acts on a falling object.
gravitational force
We use forces arrows to show how strong a force is and the...in which the force is acting
direction
A pull is when you move an object ...you
towards
Pushes and pulls are
forces
A push is when you move an object ...from you.
away
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