Physics basics (1)
The term for something that only has a magnitude
What is a scalar?
This term refers to the measurement the length that something has travelled
What is distance?
The unit of mass in physics
What is the kilogram?
You walk 20 meters West and then 10 meters East. What is the total distance.
What is 30 m?
The unit of force in physics
What is the Newton?
The term for something in physics that has magnitude and direction
What is a vector?
This term is the change in position of an object
What is displacement?
The units for velocity in physics
What is m/s?
You walk 20 meters West and then 10 meters East. What is your displacement?
What is 10 meters WEST?
The unit that is used for work and energy in physics.
What is the Joule?
Name two things in physics that are scalars which we have discussed in class so far
What is distance, speed, or mass.
The term in physics describes an objects rate of change in position and its direction
What is velocity?
The units for acceleration in physics
What is m/s/s?
An object is dropped from rest. How fast is it going in 4 seconds?
What is 40 m/s?
The units that make up a Newton?
What is kg x m/s2?
This is a term that is used to describe the tendency for an object to stay at rest or stay in motion at constant velocity
What is inertia?
This term is the rate at which the velocity is changing
What is acceleration?
The most commonly used units of temperature around the world?
What is degrees Celsius?
How many joules of energy does a 7 W bulb use in 1 minute?
What is 420 Joules?
The unit of power physics.
What is the Watt?
Name 3 things in physics that are vectors that we have discussed so far this year
What are displacement, velocity, acceleration, or force
This term refers to a projectile that is only under the influence of the force of gravity and air resistance
What is free fall?
Units of linear momentum
What is kg x m/s?
An object is dropped from rest and falls for 3 seconds. How far has it traveled?
What is 90 meters?
The units of momentum in physics
What is N s
or kg x m/s
Which variable has units of N/kg
What is acceleration
This term refers to all the combined forces acting on an object
What is Net Force of Summation of Forces
formula for Impulse
I=Ft
Formula for Work done
W=Fd
write the formula for the conservation of kinetic energy
1/2mv2before = 1/2mv2after