Gravity
Work and Power
Newton and his laws
Energy
Random
100
Explain the difference between your mass and your weight on the earth vs. if you were on the moon
What is same mass on the moon; would weigh less on the moon
100
This is the metric unit for work
What is Joule
100
State Newton's first Law
What is an object in motion stays in motion; objects at rest stay at rest...unless acted on by an unbalanced force
100
A rock sitting on the edge of a cliff is an example of what type of energy?
What is potential
100
This is the force that resists the motion of an object
What is frictional force
200
What are the units for mass and weight?
What is Mass=kg; weight=N
200
This is the metric unit for power
What is watt
200
If the net force acting on an object is equal to zero, what will happen to the object's movement?
What is it will continue along its current path at its current speed
200
When you toast a bagel, ___________ energy is converted into ___________ energy
What is electrical; heat
200
What are the units for acceleration?
What is m/s/s or m/s^2
300
When an object is accelerating due to the force of gravity with no other forces acting on it, it is considered to be in
What is free fall
300
How many watts would be used when doing 100 joules of work?
What is 10 watts
300
State Newton's 2nd law
What is F=ma
300
When you're riding a bike on a flat surface, why is it necessary to keep pedaling?
What is Some energy is lost to friction
300
If you eat a cookie and then climb some stairs, chemical energy from the cookie is converted to
What is mechanical energy
400
Why can't you feel a gravitational force acting between you and a friend?
What is because the mass of a person is not large enough to exert a gravitational force that can be felt
400
An automobile jack exerts a force of 4,500N to raise a car 0.25m. How much work is done by the jack?
What is 1,125 J
400
State Newton's 3rd law
What is every action has an equal and opposite reaction
400
Solar panels on a building collect which type of energy?
What is Light
400
This is the rate of change in the speed of an object
What is acceleration
500
An astronaut has a weight of 700N on the earth. What can be said about her weight on the moon?
What is weight is smaller, mass is the same
500
Due to friction energy in a system seems to be lost. The "lost" energy is actually converted to
What is thermal energy
500
A baseball player catches a ball. What is the reaction force to the ball?
What is the force that the glove exerts on the ball
500
When you crack a glowstick, ____________ energy is converted to __________ energy
What is chemical; light
500
A jet travels from Washington D.C. to Texas. The trip takes about 2 hours and covers about 1900km. What is the jet's velocity?
What is 950 km/h southwest
M
e
n
u