Random 1
Force always has _______ (size) and _________.
What is magnitude & direction.
What is the correct formula for work?
What is J= N x M
What kind of machine does work in a single motion?
What is a simple machine.
The SI unit for force is measured in:
What is newton (N).
True or False: Gravity is the force of attraction between all objects in the Universe.
What is true.
Which object will have more inertia: basketball, tennis ball, golf ball, football, or a bowling ball?
What is a bowling ball.
_______ is the measure of gravitational force.
What is Weight. (Did you put a capital letter???)
Force has direction. If forces are in the same direction you will ADD them to find the net force. If the forces are in the opposite direction you will _________ them.
What is subtract.
Weight is dependent on two things: _____ __ ______ and ___ __ ___ _____.
What is force of gravity; mass of the object.
A _____ is a movable inclined plane, it reduces the amount of work required to lift or split objects apart.
What is a wedge.
The technical term for friction with air is called ___ __________.
What is air resistance.
Net force is sometimes abbreviated as:
What is Fnet.
Work is measured in:
What is joules (j).
True or False: Movement doesn't have to be moving from one location to another; it can also be changing the shape of something.
What is true.
What kind of machine combines numerous simple machines to produce a more complicated machine?
What is a compound machine.
What is the force that opposes movement between touching surfaces and that always acts against the direction of motion called?
What is friction.
Newton's first law of motion is sometimes referred to as the Law of _______.
What is inertia.
What are the 3 other types of friction?
What is static, sliding, and rolling friction.
True or False: The Law of Conservation of Momentum can be used to state the velocity of objects of certain heights and velocity before and after they collide.
What is false.
Power is the rate at which work is done. Power is measured in _____ ___.
Inertia is __________ resistance to _________ in motion.
What is matters and change.
A _________ reduces the amount of effort required to lift something.
What is lever.
Newton's second law of motion says that the more _____ applied to an object, the faster it will __________.
What is force & accelerate.
Unbalanced forces have a net force in ____ direction.
What is one.
True or False: Newton's first law of motion is: "An object in motion will remain in motion and an object at rest will remain at rest unless there is net force acting on the object."
A third class fulcrum is to one side, the effort is to the _________ and the load is on the other side.
What is middle.
Work scientifically is described as an applied force to make an object move in the ____ ______ as the applied _____.
What is same direction & force.
What would a spacecraft need to do to break free of Earth's gravity and go out into space?
What is moving really fast.
The strength of gravity depends on both the _____ and the ________ between masses. (What two words best fill in the blanks)
What is mass & distance.
What two theories did Issac Newton combine to come up with a formula that showed how fast an object has to go to stay in orbit
What is gravity & motion.