Describing Motion
A change in an object's position relative to a reference point.
what is motion
This is how I calculate speed.
distance/time
a push or a pull
What is a force?
The force that pulls object towards each other.
What is gravity?
For every action there is an equal and opposite reaction.
What is Newton's 3rd law.
distance/time
What is speed
When calculating net force you do this when the forces are acting in the same direction.
What is add them.
a force that has a net force of zero and the object is at rest
What is a balanced force?
An object at rest will stay at rest and an object in motion will stay in motion unless acted on by an unbalanced force.
What is Newton's second law?
The relationship between surface type and the amount of friction.
What is
rougher the surface the more frictionsmoother the surface less friction
Any change in velocity
what is acceleration
When calculating net force you do this when the forces act in the opposite
What is subtract?
a force that has a net force of greater than zero and cause a change in motion.
What is an unbalanced force?
2 factors that affect friction.
What are the type of surface and the weight pressing down on them?
relationship between mass and gravitational pull
What is more mass more gravitational pull
less mass less gravitational pull
An objects tendency to resist a change in motion.
What is inertia?
the sum of all the forces acting on an object.
What is net force?
The force exerted when 2 surfaces rub against each other.
What is friction?
The 2 factors that affect the amount of gravitational pull between 2 objects.
What is mass and distance?
The relationship between how hard surfaces are pressed together and friction.
What is more weight more friction
This will cause a change in an objects motion.
What is an unbalanced force.
The net force of a push 50N to the right and a push 70 N to the left.
The acceleration of an object depends on the force acting on it and its mass
What is Newton's second law?
This acts in the opposite direction of motion.
What is friction?
relationship between distance apart and gravitational pull
What is more distance less pull.