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