A) work B) friction C) force D) gravitation E) magnetism
A) work B) gravitation C) magnetism D) friction E) force
A) gravitation B) work C) force D) friction E) magnetism
A) unbalanced forces B) force C) balanced forces D) work E) magnetism
A) force B) net force C) gravitation D) work E) power
A) force B) work C) friction D) net force E) power
A) power B) balanced forces C) friction D) work E) unbalanced forces
A) magnetism B) gravity C) newton D) friction
A) it continues in a straight line B) a nearby star acts on it C) an outside force acts on it D) it is placed on a flat surface
A) an equal and opposite reaction B) a greater force pushing on it C) a movement in all directions D) a force sending it backward
A) its momentum changes B) its mass and velocity changes C) its frame of reference changes D) Its position changes
A) how frame of reference influences movement B) the relationship between the four basic elements C) Why all moving objects eventually stop moving D) The movement of objects on Earth and in space
A) the ground pushes against your feet when you run B) People in a car move forward in their seats when the car stops quickly C) friction can be overcome for all objects D) gravitational forces are stronger on Earth than on the moon or other satellites
A) law of universal gravitation B) reaction force C) inertia D) orbit
A) orbit B) reaction force C) Law of Gravitation D) inertia E) action force
A) action force B) Reaction force C) inertia D) orbit
A) velocity B) position C) acceleration D) momentum E) speed
A) acceleration of that object B) velocity of that object C) the speed of that object D) position of that object E) momentum of that object
A) momentum B) velocity C) speed D) position E) acceleration
A) acceleration B) speed 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 lever and a wedge B) A screw and a wedge C) a wedge and a pulley D) a pulley and a screw
A) speed B) a magnet C) friction D) a machine
A) a current B) a power C) a force D) a machine
A) friction B) force C) power D) magnetism E) work |