A) friction B) force C) magnetism D) work E) gravitation
A) force B) gravitation C) magnetism D) friction E) work
A) work B) friction C) gravitation D) magnetism E) force
A) work B) magnetism C) force D) balanced forces E) unbalanced forces
A) net force B) force C) power D) gravitation E) work
A) work B) friction C) force D) power E) net force
A) unbalanced forces B) friction C) balanced forces D) work E) power
A) friction B) newton C) magnetism D) gravity
A) it continues in a straight line B) it is placed on a flat surface C) an outside force acts on it D) a nearby star acts on it
A) a movement in all directions B) a force sending it backward C) a greater force pushing on it D) an equal and opposite reaction
A) Its position changes B) its mass and velocity changes C) its frame of reference changes D) its momentum changes
A) Why all moving objects eventually stop moving B) how frame of reference influences movement C) the relationship between the four basic elements D) The movement of objects on Earth and in space
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) reaction force B) inertia C) orbit D) law of universal gravitation
A) orbit B) action force C) reaction force D) Law of Gravitation E) inertia
A) inertia B) Reaction force C) action force D) orbit
A) acceleration B) position C) momentum D) velocity E) speed
A) acceleration of that object B) momentum of that object C) the speed of that object D) position of that object E) velocity of that object
A) position B) acceleration C) speed D) momentum E) velocity
A) speed B) position C) acceleration D) velocity 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 lever and a wedge C) a pulley and a screw D) A screw and a wedge
A) a magnet B) speed C) a machine D) friction
A) a force B) a power C) a machine D) a current
A) work B) force C) magnetism D) power E) friction |