Science Smarts
This is the most basic of all sciences, studying matter, motion, forces, and energy.
What is physics?
This is defined as a push or pull on an object.
What is force?
This term describes the combination of all forces acting on an object.
What is net force?
This scientist developed the First Law of Motion.
Who is Isaac Newton?
This is the quantity of matter in an object and is measured in kilograms.
What is mass?
This subject is called the language of science because it is precise, testable, and unambiguous.
What is mathematics?
This is the unit used to measure force.
What is a Newton (N)?
An object at rest with zero net force is in this type of equilibrium.
What is static equilibrium?
This is the tendency of an object to resist changes in its motion.
What is inertia?
This is the amount of space an object occupies and can be measured in liters.
What is volume?
This is an educated guess that must be tested before it is accepted.
What is a hypothesis?
This force acts upward to balance the weight of an object resting on a surface.
What is the support (normal) force?
An object moving at constant speed in a straight line with zero net force is in this type of equilibrium.
What is dynamic equilibrium?
This scientist explained that friction is what stops moving objects rather than a continuous force being necessary to keep them moving.
Who is Galileo?
This is the force of gravity acting on an object, measured in Newtons.
What is weight?
A hypothesis that has been tested repeatedly without contradiction may be called this.
What is a scientific law or principle?
A box is pushed right with 30 N while friction pushes left with 30 N. This is the net force on the box.
What is 0 N?
This rule states that the sum of all forces acting on an object equals zero when it is in equilibrium.
What is the equilibrium rule (ΣF = 0)?
A hockey puck slides farther on ice than on a street because the ice has less of this.
What is friction?
A 5-kilogram bag of sugar weighs approximately this many Newtons on Earth.
What is 50 Newtons?
A scientific hypothesis must have this quality, meaning there must be a way to prove it wrong.
What is falsifiability?
A 50 N weight hangs motionless from two ropes. This is the total upward force the ropes must provide.
What is 50 N?
This rule uses the diagonal of a parallelogram to find the resultant of two non-parallel vectors.
What is the parallelogram rule?
Newton's First Law states that an object remains at rest or moves at uniform speed in a straight line unless acted upon by this.
What is a nonzero net force?
During the tablecloth trick, dishes tend to remain at rest when the cloth is pulled away quickly because of this property.
What is inertia?