Describing Motion and Force
The unit for the strength of a force
A newton
The distance an object moves per unit of time.
What is Newton's first law of motion?
An object at rest will remain at rest unless acted upon by a force.
The amount of matter something has
What is mass
How do you pronounce Mrs. D last name?
Dubovik
A push or a pull
A force
The speed at which an oject travels in a given direction
What is velocity?
What is Newton's second law of motion?
An ojects mass directly affects how much force is needed to accelerate the object.
When an object moves through the air, often called air resistance, is what type of friction?
Fluid Friction
What 8th science our we studying this year?
Physical Science
The combination of all forces acting on an object
The net force
Nicki rides her bike at a constant speed for 6 km. That part of her ride takes her 1 hour. She then rides her bike at a constant speed for another 9 km. That part of her ride takes her 2 hours. What is her average speed?
5.00km/h
What is Newton's third law of motion?
The law that states that the force of gravity acts between all objects in the universe that have mass.
Universal Gravitation
What jobs can you do with a Physics degree?
Engineer, Astronomy and astrophysics, scientist
Gravity, magnetism, and electrical forces are an example of what kind of force?
Noncontact forces
A sport in which players slide a large stone from one end of a sheet of ice to a target at the other end.
What is curling?
Forces between objects come in pairs.
What are action-reaction forces
What is kinetic energy?
The energy of motion
Where will our field trip be in December?
Museum of Science and Curiosity MOSAC
Calculated the net force and direction
2N > < 6n
4N to the left
A student graphed distance versus time for a beetle that moves 10m every 5s. What is the speed of the beetle.
2m/2
Why don't objects in motion continue moving forever?
Even if nothing appears to stop a moving object, forces such as friction, air resistance and gravity are all acting on the object to slow it down.
How much is 1 lb in Newtons?
4.45 Newtons
Define physics
The branch of science concerned with the nature and properties of matter and energy. The subject matter of physics includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms.