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