General Info
Forces/Newton's Laws
Energy
Measurements/Kinematics
Units
100
What do you call a measurement that has both direction and magnitude?
Vector
100
What is the definition of a force?
A push or pull on an object, resulting in change in direction or velocity.
100
Name 4 types of energy.
kinetic, gravitational potential, elastic potential, thermal, acoustic, electrical, chemical
100
Kilo means...
Centi means...
Kilo- 1000
Centi- 100
100
What is the SI Unit for mass?
kilograms (kg)
200
What is the acceleration of gravity on Earth? (Include proper units!)
9.8 m/s2
200
What is Newton's 1st Law also known as, and what does it mean?
Law of Inertia
Inertia- the tendency for an object to stay in its initial state unless an unbalanced force is acted upon it
200
A ball is dropped on the ground but does not bounce back to its original height, meaning some kinetic energy must've been transferred into another form of energy. Give 1 possible form of this energy.
acoustic/sound, thermal energy, elastic energy
200
The world's tallest person is 2.72 meters tall. What is his height in inches? 1 meter = 39.37 inches
107.0864 inches
200
What is the SI Unit for Force?
Newton
300
What is the difference between weight and mass?
Mass does not change due to gravity, but weight does.
300
Give 4 examples of contact forces.
applied force, normal force, friction force, air resistance force, tension force
300
What is Gravitational Potential Energy dependent on? Give the 2 out of the 3 variables.
mass, gravitational acceleration, height
300
Why does a ball speed up when it is rolled down a hill?
Gravity acts upon it, making it accelerate.
300
What is the SI unit for acceleration?
m/s2
400
What is the difference between displacement and distance?
displacement: change between starting/ending points
distance: total length traveled
400
Label this free body diagram of a book being pushed to the right on a wooden table.
Normal force going up, applied force to the right, friction to the left, gravity downwards
400
Where is the ball swinging fastest in this diagram?
at the very bottom, because kinetic energy is maximum
400
If I run around a 400 m track three times and end and start and the same time, what is my displacement and what is my distance traveled? (include units)
displacement: 0m
distance: 1200 m
400
What is the SI Unit for Energy?
Joules
500
What force is the action-reaction pair that allows our bike wheels to push against the ground?
friction
500
What is the difference between static and kinetic friction?
static- keeps the object in place
kinetic- slows the object when it is in movement
500
Why does a rollercoaster have a faster speed at the bottom of a hill if the hill is higher? What law explains this?
Conservation of Energy.
500
My car is traveling to the positive (forward) right at a negative acceleration. What does this mean?
A. I am traveling forwards and speeding up
B. I am traveling forwards and slowing down
C. I am traveling backwards and slowing down
D. I am traveling backwards and speeding up.
B
500
What is the SI Unit for momentum?
kg x m/s