A) work B) gravitation C) friction D) magnetism E) force
A) gravitation B) work C) friction D) magnetism E) force
A) force B) gravitation C) work D) friction E) magnetism
A) balanced forces B) magnetism C) unbalanced forces D) force E) work
A) work B) force C) power D) net force E) gravitation
A) net force B) friction C) force D) power E) work
A) balanced forces B) work C) power D) friction E) unbalanced forces
A) magnetism B) newton C) friction D) gravity
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 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 momentum changes C) its mass and velocity changes D) Its position changes
A) how frame of reference influences movement B) Why all moving objects eventually stop moving C) the relationship between the four basic elements 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) gravitational forces are stronger on Earth than on the moon or other satellites D) People in a car move forward in their seats when the car stops quickly
A) law of universal gravitation B) reaction force C) orbit D) inertia
A) reaction force B) Law of Gravitation C) inertia D) action force E) orbit
A) inertia B) Reaction force C) action force D) orbit
A) speed B) momentum C) velocity D) acceleration E) position
A) the speed of that object B) acceleration of that object C) position of that object D) momentum of that object E) velocity of that object
A) momentum B) position C) velocity D) acceleration E) speed
A) momentum B) acceleration C) velocity D) position E) speed
A) a pole can be knocked down when a moving car hits it B) trucks slow down when they are travelling uphill 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 lever and a wedge B) a pulley and a screw C) a wedge and a pulley D) A screw and a wedge
A) a machine B) friction C) a magnet D) speed
A) a current B) a machine C) a power D) a force
A) friction B) work C) force D) power E) magnetism |