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