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