A) gravitation B) force C) work D) friction E) magnetism
A) force B) magnetism C) work D) gravitation E) friction
A) work B) friction C) force D) gravitation E) magnetism
A) work B) balanced forces C) magnetism D) force E) unbalanced forces
A) work B) net force C) power D) gravitation E) force
A) force B) work C) power D) friction E) net force
A) unbalanced forces B) balanced forces C) friction D) work E) power
A) friction B) newton C) magnetism D) gravity
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) an equal and opposite reaction C) a movement in all directions D) a force sending it backward
A) its frame of reference changes B) Its position changes C) its mass and velocity changes D) its momentum changes
A) how frame of reference influences movement B) the relationship between the four basic elements C) Why all moving objects eventually stop moving D) The movement of objects on Earth and in space
A) People in a car move forward in their seats when the car stops quickly B) the ground pushes against your feet when you run 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) orbit C) reaction force D) inertia
A) orbit B) reaction force C) Law of Gravitation D) action force E) inertia
A) orbit B) Reaction force C) action force D) inertia
A) velocity B) speed C) momentum D) position E) acceleration
A) momentum of that object B) acceleration of that object C) the speed of that object D) position of that object E) velocity of that object
A) position B) acceleration C) velocity D) momentum E) speed
A) position B) velocity C) speed D) momentum E) acceleration
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) trucks slow down when they are travelling uphill D) a spacecraft can travel in space for thousands of years
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) a machine C) speed D) friction
A) a force B) a power C) a machine D) a current
A) force B) friction C) work D) magnetism E) power |