A) gravitation B) friction C) work D) magnetism E) force
A) force B) magnetism C) friction D) gravitation E) work
A) work B) magnetism C) gravitation D) force E) friction
A) balanced forces B) unbalanced forces C) work D) magnetism E) force
A) gravitation B) work C) force D) power E) net force
A) force B) net force C) friction D) power E) work
A) balanced forces B) unbalanced forces C) friction D) work E) power
A) gravity B) newton C) magnetism D) friction
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 greater force pushing on it B) a force sending it backward C) a movement in all directions D) an equal and opposite reaction
A) its momentum changes B) its mass and velocity changes C) its frame of reference changes D) Its position changes
A) Why all moving objects eventually stop moving B) how frame of reference influences movement C) The movement of objects on Earth and in space D) the relationship between the four basic elements
A) gravitational forces are stronger on Earth than on the moon or other satellites 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) friction can be overcome for all objects
A) inertia B) law of universal gravitation C) orbit D) reaction force
A) reaction force B) orbit C) inertia D) Law of Gravitation E) action force
A) action force B) inertia C) orbit D) Reaction force
A) momentum B) acceleration C) speed D) velocity E) position
A) momentum of that object B) position of that object C) velocity of that object D) the speed of that object E) acceleration of that object
A) acceleration B) momentum C) speed D) velocity E) position
A) position B) acceleration C) velocity D) momentum E) speed
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 lever and a wedge B) A screw and a wedge C) a wedge and a pulley D) a pulley and a screw
A) a magnet B) friction C) a machine D) speed
A) a power B) a current C) a force D) a machine
A) work B) force C) friction D) power E) magnetism |