A) work B) force C) gravitation D) magnetism E) friction
A) magnetism B) gravitation C) friction D) force E) work
A) magnetism B) force C) friction D) work E) gravitation
A) force B) work C) unbalanced forces D) balanced forces E) magnetism
A) gravitation B) power C) force D) work E) net force
A) work B) force C) net force D) power E) friction
A) unbalanced forces B) friction C) work D) power E) balanced forces
A) friction B) gravity C) newton D) magnetism
A) a nearby star acts on it B) it is placed on a flat surface C) it continues in a straight line D) an outside force acts on it
A) a greater force pushing on it B) an equal and opposite reaction C) a force sending it backward D) a movement in all directions
A) its mass and velocity changes B) its momentum changes C) its frame of reference changes D) Its position 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) 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) orbit D) inertia
A) reaction force B) Law of Gravitation C) action force D) orbit E) inertia
A) action force B) inertia C) Reaction force D) orbit
A) momentum B) speed C) acceleration D) position E) velocity
A) the speed of that object B) acceleration of that object C) velocity of that object D) position of that object E) momentum of that object
A) acceleration B) momentum C) velocity D) position E) speed
A) velocity B) speed C) acceleration D) momentum E) position
A) a ball thrown into the air always falls back toward Earth B) trucks slow down when they are travelling uphill C) a pole can be knocked down when a moving car hits it D) a spacecraft can travel in space for thousands of years
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) a machine B) a magnet C) friction D) speed
A) a current B) a force C) a machine D) a power
A) work B) power C) magnetism D) force E) friction |