Science - Forces
Which force resists motion between two surfaces that touch?
Friction
Inertia is often equated to this law
Traditional, Mixed, Command, Free market
America has this type of Government system (Limited or Unlimited)
Limited
What is Gross Domestic Product (GDP)?
The total value of goods and services a country makes in one year
If a block has a force of 10N pushing to the left and 14N to the right what is the net force acting on the block
4N to the Right
When a balloon rocket moves forward as air rushes backward, what law is shown?
Newton's 3rd Law
Which system relies on traditions and customs to make decisions?
Traditional
What does multiculturalism mean?
Many cultures living together in society
A student says, “If forces are equal and opposite, they cancel out and no forces exist.” Why is this wrong?
Forces still exist; they are just balanced
What force pushes upward on an object resting on a surface?
Normal Force
What happens to a ball rolling on the ground if NO forces act on it?
It continues to roll
Which system is controlled entirely by the government?
Command
Which system relies on traditions and customs to make decisions?
Traditional
If two objects collide, how does mass affect the amount of damage caused?
The smaller mass object is affected more
"Fr" and "Fa" are often abbreviations used to show what in a free-body diagram.
Action Force, and Reaction Force
When a hammer hits a nail, what is the reaction force?
The nail pushes back on the hammer with equal force.
Which system combines private ownership with government involvement?
Mixed
Why is multiculturalism considered a strength of the United States?
It brings diversity, new ideas, innovation, and cultural exchange
Why does a hydroflight device (water jetpack) demonstrate Newton’s 3rd Law?
Water pushes down, and the jetpack/person is pushed upward
Two bar magnets are placed near each other. One magnet’s north pole is facing the other magnet’s north pole. What will happen, and why?
They will repel each other because like poles push away with equal and opposite magnetic force.
A passenger in a car lurches forward when the car suddenly stops. Why?
Their body’s inertia keeps it moving forward.
Give one real-world example of a country with a Traditional economy
Inuit of the Arctic (Canada/Greenland) - Amish communities (United States) - Maasai people (Kenya/Tanzania) - Tribal groups in the Amazon Rainforest (South America) - Rural subsistence farming villages (Africa/South Asia)
Which sector of work employs 80% of people in USA and Canada
Service-based work
Solve for a balanced Equation
H2+O2→H2O
2H2+O2→2H2O