A) work B) force C) gravitation D) friction E) magnetism
A) friction B) work C) force D) gravitation E) magnetism
A) work B) friction C) force D) magnetism E) gravitation
A) magnetism B) force C) balanced forces D) unbalanced forces E) work
A) net force B) power C) work D) force E) gravitation
A) work B) net force C) friction D) power E) force
A) balanced forces B) unbalanced forces C) power D) work E) friction
A) gravity B) friction C) magnetism D) newton
A) an outside force acts on it B) it continues in a straight line C) it is placed on a flat surface D) a nearby star acts on it
A) a greater force pushing on it B) a movement in all directions C) an equal and opposite reaction D) a force sending it backward
A) Its position changes B) its frame of reference changes C) its momentum changes D) its mass and velocity changes
A) how frame of reference influences movement B) Why all moving objects eventually stop moving C) The movement of objects on Earth and in space D) the relationship between the four basic elements
A) the ground pushes against your feet when you run B) People in a car move forward in their seats when the car stops quickly C) gravitational forces are stronger on Earth than on the moon or other satellites D) friction can be overcome for all objects
A) inertia B) law of universal gravitation C) reaction force D) orbit
A) Law of Gravitation B) action force C) reaction force D) inertia E) orbit
A) Reaction force B) inertia C) orbit D) action force
A) velocity B) acceleration C) speed D) position E) momentum
A) acceleration of that object B) velocity of that object C) position of that object D) momentum of that object E) the speed of that object
A) position B) velocity C) momentum D) speed E) acceleration
A) speed B) acceleration C) velocity D) position E) momentum
A) a pole can be knocked down when a moving car hits it B) trucks slow down when they are travelling uphill C) a spacecraft can travel in space for thousands of years D) a ball thrown into the air always falls back toward Earth
A) a wedge and a pulley B) a pulley and a screw C) a lever and a wedge D) A screw and a wedge
A) a machine B) speed C) friction D) a magnet
A) a current B) a power C) a force D) a machine
A) force B) friction C) magnetism D) power E) work |