Contact & Non-Contact Forces
These are forces that can act at a distance.
What are non-contact forces?
This happens when two forces are acting in the same direction.
What is combining?
This is what the force acting on an object is if the net force is not equal to 0N.
What is an unbalanced force?
This is known as the law of inertia. It states an object in motion will stay in motion, and an object at rest will stay at rest.
What is Newton's 1st law of motion?
This law states that the greater the mass of an object, the more force it will take to accelerate the object. This can be summed up by the equation F=ma.
What is Newton's 2nd law of motion?
These are the three types on Non-contact forces.
What are gravity, magnetism, and electric forces?
Mass, force, and acceleration are measured in these units respectively.
What are kilograms (kg), Newtons (N), and meters per second squared (m/s2)?
This is what the force acting on an object is if it's net force is equal to 0N.
What is a balanced force?
This law states that for every action there is an equal and opposite reaction.
What is Newton's 3rd law of motion?
These are the pair of forces that always act together on an object.
What are the action and reaction forces?
This happens when the north pole of a magnet is brought near the south pole of another magnet.
What is opposites attracting?
This is the total force acting on an object once all forces have been added or subtracted.
What is net force?
This is what it means when an object has a net force of 0N.
What is having no acceleration?
This is what causes an object to continue doing what it is doing.
What is inertia?
This will happen when a hammer strikes a nail.
What is pushing back on the hammer with an equal force?
These are changing places when a balloon is rubbed against a sweater.
What are electrons?
This is the net force acting on this object.
(Drawn on the Board)
What is 5N up?
This is when an object is speeding up, slowing down, or turning.
What is acceleration?
If a balloon is released to fly across the room, this is the force that propels it forward.
What is the reaction force?
This is what will happen to a person riding a horse if the horse stops abruptly.
What is their inertia will continue to carry them forward?
This is the acceleration due to gravity.
What is 9.8 m/s2?
Name all of the forces represented by this image.
(Drawn on the board)
What are gravitational force, applied force, frictional force, and normal force?
These are the traits of a vector.
What are magnitude and direction?
This is the mass of an object that takes 30N of force to accelerate at 10m/s2.
What is 3kgs?
This is the force required to move a 10kg object with an acceleration of 5m/s2.
What is 50N?