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