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