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