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