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