SI Units
What is the SI unit for mass?
The kilogram
What is the definition of speed?/How is it calculated?
Distance over Time, Distance/Time
A vehicle travels 100 kilometers in 4 hours, what is the average speed in km/h?
25
A push or pull is also known as?
Force
What is the phrase used to describe the various procedures and methods used to investigate scientifically?
The scientific method
The SI unit for length?
The meter
What is the definition of displacement?
The change in an object's position relative to a starting point.
A vehicle increases its speed from 40 m/s to 60 m/s in ten seconds, what is the acceleration during this time?
2 m/s^1
What do we call the sum of all forces that are acting on an object?
Net force
What do we call the energy an object has because of its motion?
kinetic energy
What is the SI unit for velocity?
Meters per second, M/S
What is required to calculate momentum?
30 kg m/s
What does Newton's third law say?
For every action there is an equal but opposite reaction
An explanation of WHY based on many observations and investigations is known as a scientific what?
Theory
Kelvin
If velocity remains constant, what is the value of its acceleration? (A number!)
0!
An appliance uses 100 joules of energy in 10 seconds, what is the power rating?
10 Watts
The force that opposes motion between two surfaces can also be termed?
Friction
What happens if work is done on one system by another? (What is transferred?)
Energy is transferred, energy
The SI unit used to measure energy is the what?
Joule
Under what circumstances can an object have negative acceleration?
When it is slowing down, braking, when an object slows...
A man travels 40 km/hr, what is his speed in m/s?
11.1 m/s
An object's resistance to changes in its motion is termed what?
Inertia
What is the name of the scientist who discovered several laws relating to motion?