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