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