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