Matter and its Properties
What is the smallest unit of an element that still retains its properties?
(Answer: What is an atom?)
What is energy in motion called?
(Answer: What is kinetic energy?)
What do we call a disturbance that transfers energy?
(Answer: What is a wave?)
What galaxy do we live in?
(Answer: What is the Milky Way?)
What tool is used to measure force?
(Answer: What is a spring scale?)
What state of matter has a definite volume but no definite shape?
(Answer: What is a liquid?)
What unit is used to measure energy?
(Answer: What is the joule?)
Which wave requires a medium to travel through?
(Answer: What is a mechanical wave?)
What force holds planets in orbit?
(Answer: Gravity)
What is the formula for speed?
(Answer: Speed = Distance ÷ Time)
What’s the difference between a compound and a mixture?
(Answer: A compound has chemically bonded elements; a mixture does not.)
What are the two main types of mechanical energy?
(Answer: Kinetic and potential energy)
What property of a wave determines its loudness?
(Answer: Amplitude)
What does the Big Bang Theory explain?
(Answer: The origin of the universe)
What force pulls objects toward Earth?
(Answer: What is gravity?)
What is the law that states mass is not created or destroyed in a chemical reaction?
(Answer: What is the Law of Conservation of Mass?)
Define work in physical science.
(Answer: Work = Force × Distance)
What part of the wave is the highest point?
(Answer: What is the crest?)
What tool do scientists use to study distant stars and galaxies?
(Answer: What is a telescope?)
What is Newton’s Third Law of Motion?
(Answer: For every action, there is an equal and opposite reaction.)
Name the three subatomic particles and their charges.
(Answer: Proton (+), Neutron (0), Electron (-))
A 10 N force moves an object 3 meters. How much work is done?
(Answer: 30 joules)
What is the frequency of a wave that completes 20 cycles in 4 seconds?
(Answer: 5 Hz)
What is redshift evidence of?
(Answer: That the universe is expanding)
An object has a mass of 5 kg and accelerates at 2 m/s². What is the force applied?
(Answer: 10 N)