A) work B) gravitation C) friction D) force E) magnetism
A) work B) force C) magnetism D) friction E) gravitation
A) magnetism B) work C) gravitation D) friction E) force
A) unbalanced forces B) work C) force D) magnetism E) balanced forces
A) gravitation B) net force C) force D) work E) power
A) work B) net force C) force D) friction E) power
A) work B) balanced forces C) unbalanced forces D) power E) friction
A) friction B) magnetism C) gravity D) newton
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) an equal and opposite reaction C) a greater force pushing on it D) a force sending it backward
A) its momentum changes B) Its position changes C) its frame of reference changes D) its mass and velocity 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) the ground pushes against your feet when you run C) gravitational forces are stronger on Earth than on the moon or other satellites D) friction can be overcome for all objects
A) orbit B) reaction force C) law of universal gravitation D) inertia
A) action force B) orbit C) inertia D) Law of Gravitation E) reaction force
A) Reaction force B) inertia C) action force D) orbit
A) position B) momentum C) velocity D) speed E) acceleration
A) velocity of that object B) position of that object C) the speed of that object D) acceleration of that object E) momentum of that object
A) momentum B) position C) acceleration D) speed E) velocity
A) position B) acceleration C) velocity D) speed E) momentum
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 screw and a wedge B) a wedge and a pulley C) a lever and a wedge D) a pulley and a screw
A) speed B) a machine C) friction D) a magnet
A) a machine B) a force C) a power D) a current
A) work B) friction C) power D) force E) magnetism |