Projectiles
A ball is launched at a 30 degree angle with an initial velocity of 20 m/s. What is the initial vertical velocity?
10 m/s
In Physics, work is defined as______
force times distance
What is the stored energy of an objects position or location?
Gravitational potential energy
Unit for energy?
Joule
A ball is launched at a 30 degree angle with an initial velocity of 20 m/s. What is the horizontal velocity?
17.3 m/s
In physics, power is defined as_____
work divided by time
How much kinetic energy is needed to move a 40 kg animal at a velocity of 5 m/s?
500 J
What is Kinetic Energy?
The energy of motion
A ball is dropped from a 5 m table at a horizontal velocity of 10 m/s. What is the range (distance) the ball traveled in the x direction?
10.1 m/s
Work done on a 10 kg mass over a distance of 3 meters
294 Nm
What is the total energy of a rollercoaster with a height of 10 m, mass of 5 kg, and a velocity of 2 m/s?
500 J
What is Simple Harmonic Motion?
Simple Harmonic Motion (SHM) is a type of repetitive, back-and-forth motion that happens when an object moves about an equilibrium (rest) position under a restoring force that is directly proportional to its displacement and always directed toward the equilibrium position.
A ball is launched at a 30 degree angle at a velocity of 20 m/s. What is the maximum height that the ball travels?
5.1 meters
Suppose you carry books with a weight of 22 N a distance of 3.8 m across a room. Determine the work done on the books.
0 Nm
A 0.45 kg bullfrog jumps with an initial speed of 6.2 m/s at an angle of 49° above the horizontal. Assume that energy losses due to air resistance are negligible. Calculate the maximum height of the bullfrog’s jump.
1.1m
Tell me the name of a famous physicist who discovered the universal law of gravitation and invented calculus to solve physics problems.
Sir Isaac Newton
Bonus:+200 if answer correctly, -200 if not
A spring with a mass of 2 kg, accelerates from an initial velocity of zero to a final velocity of 6 m/s over 3 seconds. When this spring is compressed 2 m, what is the spring energy?
4 J
What is the power used by a truck to lift a 200 kg object 5 meters in 3 seconds?
3267 W
A 42 kg teenager balances briefly on a pogo stick, causing the spring in the stick to compress downward by 0.18 m. Determine the elastic potential energy of the spring.
2286.7 N/m
A model car of 5.0 kg slides down a frictionless ramp into a spring with spring constant k = 4.9 kN/m. The spring experiences a maximum compression of 22 cm. Calculate the speed of the model car when the spring has been compressed 15 cm.
5.04 m/s