Branches of physics & motion diagram.
What branch of physics that studies the relationship between electricity and magnets:
Electromagnetism
What are balanced forces?
Equal forces acting on an object in opposite direction.
What makes things fall?
Gravity
SI unit for energy is:
Joule (J).
Who developed the three laws of motion?
Sir Isaac Newton.
What branch of physics studies heat?
Thermodynamic.
What is the scientific method?
A series of steps that guide you to new knowledge.
What is a free body diagram?
It’s a diagram showing all the forces acting on an object.
1,000,000,000,000 is…
Tera
What is the third law of motion.
For every action there is an equal and opposite reaction.
It’s a simplified motion diagram that uses dots and arrows to show the change of position.
Particle model.
Force that slows an object from moving:
Drag force.
Why do objects fall in different velocities?
Air resistance
What is the SI unit for luminous intensity?
candela (cd)
Italian astronomer who was the first to use a telescope to study stars.
Galileo Galilei
What does astrophysics study?
Celestial objects.
Which are the steps for the scientific method?
state the problem, gather information, form a hypothesis, test the hypothesis, analyze data, draw conclusions, share your information.
-9.8m/s^2 is the value of…
Gravity on Earth.
Kilo is:
1000
F=ma
Second Law of Motion.
What is a motion diagram?
It’s a series of drawings or images that show you the change of position of an object.
Scalars only have…
Magnitude.
What is the formula for acceleration?
a=v/t
Kelvin is the SI unit for…
Temperature
What is the first law of motion?
A body remains in Motion with a constant velocity unless acted upon by an external force.