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