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