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