Energy
What is gravitational potential energy?
Energy due to an object's position in a gravitational field
What is speed?
Distance traveled in a given unit of time.
What is the amount of matter in an object?
Mass
What type of surface would be MOST challenging for a hovercraft to operate on?
Rocky terrain
What is engineering?
A type of science that solves problems and creates tecnologies to do so.
When a car suddenly stops, passengers tend to move forward. This is an example of what force?
Inertia
When a car accelerates, what happens to its kinetic energy?
It increases
If an object's mass decrease by half what happens to it's kinetic energy?
It halves.
What is the main advantage of a hovercraft compared to traditional boats?
Ability to travel over multiple surfaces
The basic framework of a hovercraft designed to provide structural support.
Structural system.
What force opposes motion between two surfaces in contact?
Friction
An object in motion stays in motion unless acted upon by what?
An external force
In a bobsled race, the sled pushers are trying to do what?
Transfer energy from themselves and put it into the sled
What is the primary principle that allows a hovercraft to float above the surface?
Air cushion technology
Provides information about the vehicle
Guidance system
Which would have more gravitational potential energy?
b. A 1kg ball at the top of a hill
a. A 1kg ball at ground level
B.
What is the difference between speed and velocity?
Velocity includes direction, speed doesn't
An object's mass doubles, it's kinetic energy does what?
Doubles.
Which component of a hovercraft is responsible for creating the air cushion beneath the vessel?
Lift fan
The part that sets the speed and direction
Control system
A ball rolling down a hill demonstrates the conversion of what two energies?
Gravitational potential energy to kinetic energy
Air resistance is a type of what force?
Drag force.
The energy system in a pendulum continuously converts between what two types of energy?
Gravitational potential and kinetic energy
What is the primary purpose of the skirt on a hovercraft?
To contain the air cushion
Provides for a smooth ride by absorbing external forces that act on a hovercraft.
Suspension system