A) work B) force C) friction D) magnetism E) gravitation
A) work B) magnetism C) gravitation D) friction E) force
A) friction B) magnetism C) force D) gravitation E) work
A) magnetism B) balanced forces C) force D) unbalanced forces E) work
A) gravitation B) power C) net force D) force E) work
A) power B) work C) force D) friction E) net force
A) power B) unbalanced forces C) friction D) balanced forces E) work
A) friction B) magnetism C) newton D) gravity
A) a nearby star acts on it B) an outside force acts on it C) it continues in a straight line D) it is placed on a flat surface
A) a force sending it backward B) a greater force pushing on it C) an equal and opposite reaction D) a movement in all directions
A) Its position changes B) its momentum changes C) its frame of reference changes D) its mass and velocity changes
A) how frame of reference influences movement B) Why all moving objects eventually stop moving C) The movement of objects on Earth and in space 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) inertia B) orbit C) law of universal gravitation D) reaction force
A) inertia B) reaction force C) action force D) Law of Gravitation E) orbit
A) Reaction force B) action force C) orbit D) inertia
A) speed B) acceleration C) velocity D) momentum E) position
A) the speed of that object B) velocity of that object C) acceleration of that object D) position of that object E) momentum of that object
A) velocity B) acceleration C) speed D) momentum E) position
A) velocity B) position C) speed D) acceleration E) momentum
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 pulley and a screw B) a wedge and a pulley C) a lever and a wedge D) A screw and a wedge
A) speed B) a magnet C) friction D) a machine
A) a force B) a machine C) a power D) a current
A) magnetism B) work C) friction D) power E) force |