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