Use the Force Luke!
What is the formula associated with Newton's Second Law?
What is F = ma
What is the formula for Potential Energy due to gravity?
Eg = mgh
How many joules are there in a kilojoule?
What is 1000?
What is the formula for calculating work?
What is W = Fd?
What is the formula for velocity?
What is v = d/t
Force and acceleration are what in relation to each other?
What is proportional?
What is the value for the constant g?
What is 9.80 m/s2?
1 kg x 1 m2/s2 is equal to what?
What is 1 joule?
In what units is work measured?
What are Joules?
Would an animal that could run 30 m/s be considered fast?
What is yes?
Weight is the force due to gravity acting on an object. What is the equation to determine the force of weight?
Fw = mg
An impish :-) student throws a 10 g paper football 10 m with a velocity of 5 m/s into the air. What is its kinetic energy at its maximum height?
What is zero?
1 N (Newton) times 1 m (meter) is equal to what?
What is 1 joule?
A man lifts a bucket using 100 N of force 1 meter straight up. How much work is done?
What is 100 J?
A 30 g Hot Wheels car travels across 1 m of track in 0.25 seconds. What is its velocity?
What is 4 m/s?
If mass is doubled but same force used, what happens to acceleration?
What is acceleration is halved?
A 10 kg mass has been lifted onto a shelf and has a gravitational potential energy of 98 J. How high off the ground / floor is it? (assume no energy loss)
What is 1 m?
what is the equation for kinetic energy and what is its unit of measure?
What is Ek = 1/2mv2 and what is a joule (J)?
The man then walks 10 m to his left while holding the bucket at the same height. How much work is done to the bucket?
What is zero?
A 10 g Hot Wheels car rolls down a ramp that is 1.28 meters tall.
Assuming no friction or energy loss, what is its velocity when it reaches the bottom?
What is approximately 5 m/s?
How much is the force of weight for a 10 kg mass?
What is 98 N?
A pigeon egg rolls off the ledge of a skyscraper. The ledge is 100 m from the ground. Assuming no wind resistance or other energy losses, what is its velocity when it hits (splats!) on the ground.
What is approximately 44 m/s? (40 m/s with sig figs)
Many different physics quantities can be measured in joules.
Name three different quantities we have studied that are all measured in joules.
What are work, gravitational potential energy, kinetic energy?
Mr. Muscles lifts a 100 kg mass over his head to a height of 2 meters. How much work does he do?
What is 2000 J? (1960 J also accepted if no sig figs taken into account)
A 30 g Hot Wheels car goes down a 1 m tall ramp and reaches a velocity of 4 m/s at the bottom of the ramp. A 60 g Hot Wheels car is then put on the same ramp. What is its velocity at the bottom of the ramp? Assume no friction or other loss of energy.
What is 4 m/s?