A) magnetism B) work C) friction D) force E) gravitation
A) gravitation B) force C) friction D) work E) magnetism
A) force B) magnetism C) work D) friction E) gravitation
A) magnetism B) balanced forces C) force D) unbalanced forces E) work
A) work B) power C) force D) gravitation E) net force
A) force B) power C) friction D) work E) net force
A) work B) friction C) balanced forces D) power E) unbalanced forces
A) magnetism B) newton C) gravity D) friction
A) an outside force acts on it B) a nearby star acts on it C) it is placed on a flat surface D) it continues in a straight line
A) a movement in all directions B) a force sending it backward C) a greater force pushing on it D) an equal and opposite reaction
A) Its position changes B) its frame of reference changes C) its momentum 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) Why all moving objects eventually stop moving D) how frame of reference influences movement
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) inertia C) law of universal gravitation D) reaction force
A) reaction force B) orbit C) inertia D) Law of Gravitation E) action force
A) inertia B) action force C) Reaction force D) orbit
A) position B) acceleration C) speed D) velocity E) momentum
A) position of that object B) acceleration of that object C) the speed of that object D) velocity of that object E) momentum of that object
A) velocity B) momentum C) acceleration D) position E) speed
A) momentum B) velocity C) speed D) position 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) a spacecraft can travel in space for thousands of years 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 machine B) a magnet C) speed D) friction
A) a machine B) a force C) a power D) a current
A) work B) magnetism C) force D) friction E) power |