Newton
Newton's first law of motion states that an object at rest will....?
stay at rest
In which direction does buoyancy act?
Up
A machine makes work easier by reducing the ____________ needed.
force
The egg is falling due to what force?
Gravity
What type of energy is energy in motion?
kinetic
Newton's second law of motion states that the acceleration of an object depends on the force on the object and the ___________ of the object.
Which has a greater density? Ice or water?
Water
How many simple machines are there?
6
A parachute-like device will serve to increase the force of ______________________________
air resistance
force
Newton's 3rd law of motion states that for every action, .........
there is an equal and opposite reaction
An object in water will push some water aside. This is called ________________
displacement
Name one simple machine
lever, pulley, wheel and axle, wedge, screw, inclined plane
Materials surrounding the egg like foam, cotton, or bubble wrap are intended to reduce the ___________________ of the fall.
impact
Which of Newton's laws of motion states that an object in motion will stay in motion?
First (inertia)
Force is measured in units called ___________.
Newtons
If an object has a density of 0.7, what will it do in water?
Float
compound machine
potential
If the mass of an object increases, what will happen to the momentum?
It increases
Newton's first law of motion is also called the law of ______________.
If an object weighs more than the weight of the water it displaces, then it will ______________.
sink
The force that one surface exerts on another when the two surfaces rub against each other
friction
What term is used for the motion of a falling object when the only force acting on it is gravity?
free fall
Which of the six simple machines consist of a force, load, and a fulcrum that acts as a fixed pivot point?
lever