Forces And Motion Flashcards
What is the up force for an object on the ground?
Normal contact force
What is the down force for an object on the ground?
Gravitational force and weight
What is the backwards force for an object on the ground?
Air resistance and Friction
What is the forwards force for an object on the ground?
Forwards force
Whats the backwards force for an object in the air?
Air resistance or drag
What is the down force for an object in the air?
Weight
What is the up force for an object in the air?
Lift
What is the forwards force for an object in the air with an engine?
Thrust
When does thrust only work?
When there is an engine
What is the forwards force for a boat?
Thrust or forwards force from the wind in the sails
What is the backwards force for a boat?
Water resistance or drag
What is the up force for a boat?
Upthrust
What is the downwards force for a boat?
Weight
What are the 4 energy stores?
Chemical, Kinetic, Gravitational potential and thermal/internal.
What is chemical energy?
Chemical energy, the energy stored in the bonds of chemical compounds.
What is Gravitational potential energy?
Position in a gravitational field and springs.
What is kinetic energy?
Kinetic energy is the energy an object has because of its motion
What is thermal/internal energy?
Thermal energy refers to the energy contained within a system that is responsible for its temperature
What are the 5 energy transfers?
Light
Sound
Electricity
Heat
Force
What is the equation for speed?
Speed= distance/time
1) What is speed measured in?
2) What is distance measurement in?
3) What is time measured in?
1) Mps or M/S (Meters per second)
2) Meters
3) Seconds
How do you convert hours to seconds?
You can multiply the number of hours by 3600 to convert hours into seconds.
How do you convert minutes to seconds
Multiply the number of minutes by 60 to get the number of seconds
What is the equation for movement?
Movement= force x distance [from pivot]
What is movement measured in?
Newton metres
What is force measured in?
Newtons
What is the equation for work done?
Work done = force x distance moves in the direction of the force
What is work done measured in?
Joules