Physics is the study of matter and energy and the interactions between them.
100
DEFINE “science.”
Science is the study of phenomena (what happens) in our universe. It explains how the world works.
100
DEFINE “mass”.
Mass is the amount of “stuff” an object is made of.
100
What is Physical Science all about?
Physical Science is all about how matter and energy change.
100
Why is it important to know about atoms?
It is important to know about atoms because everything that is made of matter, that has mass and takes up space, is made of atoms.
200
DEFINE “matter”.
Matter is everything that has mass and takes up space.
200
DEFINE “engineering.”
Engineering is using design to come up with solutions, often creating and working with technology that makes life better.
200
What is the standard METRIC unit for measuring mass?
The metric units for measuring mass are kilograms and grams.
200
What are some changes that can be made to a material like hair?
We can change its shape (braid it, curl it, put in in ponytails, put it in a bun). We can change its size (cut it, grow it). We can change its color.
200
Atoms are to molecules as __________________ are to words.
Atoms are to molecules as letters are to words.
300
What is the difference between a hypothesis and a theory?
A hypothesis is an “educated guess” or a prediction. A theory is supported by all available evidence, and is accepted by almost all scientists as truth.
300
Define “technology.”
Technology is any tool created by Science that makes life better.
300
Why do scientists prefer using the metric instead of the English measurement system?
Because metric is in units of 10. The English system is highly variable.
300
What is the cause of all change?
All change is caused by ENERGY. Energy is the ability to cause change.
300
Name something that is not made of matter, so it is not made of atoms.
Sound is made of energy, not matter. Sound is not made of atoms.
400
Name a law of physics that has been so tested it is now accepted as “truth.”
The law of gravity, Newton’s laws of motion
400
EXPLAIN why a bridge is technology.
A bridge is technology because it is a tool that solves the problem of how to cross a river.
400
What are the metric units for measuring length?
The metric units for measuring length are: the centimeter (cm), meter (m) and kilometer (km).
400
Is everything that changes made of matter? Explain.
No, everything that changes is not made of matter. Sound, time and light can all change, but are not made of matter.
400
NAME at least some of the types of atoms in your body.
Some of the many types of atoms in your body are carbon, oxygen and hydrogen.
500
Why is physics considered to be the most fundamental of all sciences?
Because it explains natural phenomena in the universe. Without it you could not have the other sciences.
500
EXPLAIN what an engineer does.
An engineer, investigates, solves and evaluates. He/she identifies possible solutions, and develops models and prototypes that can be evaluated and improved.
500
What are the two ways time is used?
1. to identify a particular moment in the past or in the future
2. to measure intervals of time (quantities: how much time).
500
We can change where an object is located by moving it. The energy to move something is usually a __________ or a _____________.
The energy to move something is usually caused by a push or a pull.
500
Surprise Bonus! (double points)
How can you measure the mass of a liquid without including the mass of its container?
TARE the mass of the container. Measure the mass of the empty container, and subtract that from the total mass of the liquid in its container.