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