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