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