Changes in matter
What is matter?
Matter is anything that has mass and takes up space.
Which is not part of the digestive system?
a) Stomach
b) Alveoli
c) Epiglottis
d) Esophagus
b) Alveoli
Light bulbs produce two types of energy. What are they?
Light bulbs produce thermal energy and radiant energy.
______________ is an internal force when an object is pressed inwards.
a) Tension
b) Compression
c) Shear
d) Torsion
b) compression
What sector consumes the most energy?
a) Agriculture
b) Industrial
c) Transportation
d) Residential
b) industrial
What energy is the energy released through a chemical reaction.
Chemical
The lungs inhale air and exhale ____________.
a) Smoke
b) Carbon dioxide
c) Carbon monoxide
d) Carcinogens
b) Carbon dioxide
What is a renewable energy source? Give an example.
A renewable resource is something that can be used more than once because it is replaced naturally. An example is the sun.
Which is an example of a non-contact force?
a) A baseball player hits a baseball with a bat
b) A construction worker uses a shovel to dig a hole
c) A skydiver parachutes out of a plane towards the ground
d) An author types a book on a laptop
c) skydiver
Which state of matter has particles closely packed together?
a) Gas
b) Solid
c) Liquid
d) Space
b) solid
All matter is made of tiny particles called ____________.
a) Granules
b) Electrons
c) Atoms
d) Fragments
c) atoms
_____________ is a disease that causes swelling and pain in joints.
A stroke, Alzheimer’s, Arthritis, Asthma
Arthritis
Which of the following is not a fossil fuel:
a) Gas
b) Petroleum
c) Solar energy
d) Coal
c) solar energy
What is the difference between an internal and external force? Provide an example of each.
Internal forces are forces that occur within a structure (e.g. tension, torsion, shear, and compression). External forces are caused by external agents in a structure. An example of this is the wind affecting a structure or occupants in a building.
When an object is cooled, it...
a) Creates thermal energy.
b) Gains thermal energy.
c) Loses thermal energy.
d) Has no transfer of thermal energy.
c) loses thermal energy
What is a physical change?
Give an example of a physical change.
A physical change is reversible and the chemical composition does not change. An example is water freezing.
List the three types of tissue in the musculoskeletal system.
Skeletal
Smooth
Cardiac
Digesting food is an example of which form of energy?
a) Nuclear
b) Light
c) Radiant
d) Chemical
d) chemical
What is the difference between a static and dynamic load?
Dynamic loads are subject to change. Static loads stay the same.
A measure of the intensity of a force is known as _______________.
a) Magnitude
b) Weight
c) Speed
d) Direction
a) Magnitude
What is a chemical change?
Give an example of a chemical change.
A chemical change is irreversible and involves a change in chemical composition. An example is burning wood in a fire.
Name 5 human body systems
Respiratory, circulatory, skeletal, muscular, nervous
What is energy dissipation?
Any energy that is not transferred to useful energy stores is said to be wasted because it is lost to the surroundings.
Which is an example of an internal force on a bridge?
a) Pedestrians walking on the bridge
b) Tension on the bridge cables
c) Vehicles driving across the bridge
d) Snow collecting on a bridge
b) tension on the bridge cables
__________ energy is energy at work.
a) Physical
b) Kinetic
c) Static
d) Potential
b) kinetic