general knowledge
what is speed
speed is the measure of fast an object moves
define renewable energy
energy we can get more of in one human lifetime
forces change with the amount of energy true or false
true
speed is measured in m / s2 true or false
false its measured in m /s or km / h
greenhouse gases are good true or false
false
what is an unbalanced force
a net force that is stronger on one side slowing or changing an objects speed
name 3 disadvantages of geothermal energy
high initial costs, greenhouse gases release during construction, risk of triggering earthquakes, geothermal reservoir may run out if not managed properly.
what are forces measured in
newtons / N
what is the formula for speed
speed = distance/time
what is Ms. Laurie's favorite NHL team (Im sorry whoever got this)
the Ottawa senators
what are greenhouse gases
gases that trap heat from the sun causing global warming
name the 3 fossil fuels you have 7 seconds
oils gases and coal
what is a balanced force?
a net force of 0 on an object
what is the formula for acceleration
acceleration = final speed - starting speed / time
if acceleration is negative is it deceleration
yes its deceleration
what is instantaneous speed
the speed of an object at one given moment
what is the most reliable energy source
fossil fuels oils and gases
If an object is moving and an unbalanced force starts acting on it what happens you have 10 seconds
it either speeds up or slows down and changes direction
a plane travels 5000km in 50 hours what's its speed
100km / h
name 2 renewable energy sources you have 5 seconds
solar , wind , tidal , wave , geothermal and nuclear
define clean energy in 15 seconds
energy that doesn't cause release of greenhouse gases
name 5 renewable energy sources you have 15 seconds
solar , wind , tidal , wave , geothermal and nuclear
a car has 5000 N pushing it forward an 4700N pushing it backwards what is the net force answer in 7 seconds
300 N to the left
A car moves changes speed from 50 m/s to 150 m/h in in 5 second what's its acceleration you have 1 minute seconds to solve this
20m / s2
20km / h