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