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