Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Test PS
| Question | Answer |
|---|---|
| What is energy? What is the SI units for energy? | The ability to cause change and Joules |
| What is work as a physicist would define the term | Work is for supplied through distance W equals FD |
| Describe the work done on an object when the force on that object, and the motion of that object are perpendicular | No work is done |
| Compare potential energy in kinetic energy. Does a stationary car have kinetic energy. Does a flying Bird have potential energy. | Potential energy is stored energy, kinetic is energy in motion |
| When a log burns on a campfire, what type of energy is the source of the combustion into what other kinds of energy is this energy converted? | Chemical potential energy |
| How can a contact force generate potential energy? | Raise it up |
| On the basis of the power formula, what change in condition can increase the amount of power | No more work less time or energy |
| What happens to the mechanical energy of a book when you push a book across the table? | Thermal energy |
| What is the law of conversion of energy and why is it a law and not a theory? | Energy cannot be destroyed only transferred from one form to another |
| Which form of energy is the sun? | Radiant energy |
| What form of energy is a galloping donkey? | kinetic energy |
| Which form of energy is a megaphone | Sound energy |
| Which form of energy is a hamburger | Chemical potential energy |
| Which form of energy is a fire | Thermal energy |
| Which form of energy is a climber climbing | Kinetic energy and gravitational potential energy |
| What type of energy is a nuclear power station? | |
| Which form of energy is a electric cable? | Electric energy |
| Which energy is a stretched bow | Elastic potential energy |
| The amount of kinetic energy a moving object has depends on its mass and it—————— | Velocity |
| The mechanical potential energy of an object depends on it—————- | Position |
| The energy stored in foods and fuels is————— | Chemical potential energy |
| The law of———— states the energy cannot be created or destroyed | Chemical potential energy |
| A compound machine is a combination of two or more——__ | Simple machines |
| The number of times the machine multiplies the effort of force is the————— of the machine. This is also the ratio of the output force to the input force. | Mechanical advantage |
| You convert kinetic energy into thermal energy when you rub two sticks together because of——- | Friction |
| The total energy of a system remain——— | Constant |
| A car engine changes, chemical potential energy———— energy of the moving car | Kinetic |
| ———— is the rate at which energy is transformed | Power |
| When a book is moved from a higher shelf to a lower shelf————-changes | Gravitational potential energy |
| The energy due to compressing a spring——————- | Elastic potential energy |
| How does a machine make work easier? | It changes, force and changes motion and increase speed |
| List several types of simple machines | Lever incline plane wedge, pulley ,screw,, Will an axle |
| How can you increase the efficiency of a machine? | Reduce friction |
| Friction causes mechanical energy to be converted———-energy | Thermal |
Created by:
paigeesmoak1