Amy runs 200m south, then turns around and runs 300m north. What is his distance AND displacement?
What is 500m and 100m(N)
100
If a man walks 13m in 6.2 seconds, what is his average speed?
What is 2.1 m/s
100
A worker exerts an upward force of 74.0 N while carrying a ladder across a 17.0 m room. The work done on the plank is?
What is 1.30 x 10^3 J
100
A bowling ball with a mass of 1.05kg is traveling at a velocity of 2.47 m/s ad smashes into a wall. How much energy does the bowling ball have when it hits the wall.
What is 3.20 J
100
True or False: vector quantities, such as speed, include direction
What is false
200
Jermaine runs exactly 3 laps around a 400m track. What is his distance and displacement?
What is 1200m and 0m (N)
200
A boat travels at a velocity of 8.00 m/s for 14.0 s. What is the displacement of the boat.
What is 112m
200
Yohance uses a wheelbarrow the move soil from his garden to a new flowerbed. He exerts and average force of 165 N while pushing the wheelbarrow, and he does 6.4 kJ of work while moving each load of soil. How far is he moving the soil?
What is 39m
200
A baseball with a mass of 0.60kg has 660.1644 J of energy due to motion. What is the speed of the baseball?
What is 46.9m/s
200
Using an example of a furnace or a toaster, what form of energy is heat?
What is useful output energy
300
You walk 12m north, then 15m north, 35m south, 11m south, then 16m north. What is his distance and displacement?
What is 89m and 3m (S)
300
If a race car travels at an average speed of 77.0 m/s over a distance of 570 m, how long has it been traveling for?
What is 7.41s
300
A battery charger uses 6585 J of electrical energy to charge a battery. If 5420 J of energy are stored in a battery, what is the efficiency of the energy transfer?
What is 85.31%
300
Brian tosses a hammer of 1.7kg into the air to a height of 9.2 m. How much energy was used to throw the mass into the air?
What is 1.5 x 10^2 J
300
What is the difference between mass and weight?
What is the force of gravity on the later
400
Two cars start at the same point and drive in a straight line for 5km. At the end of the drive their distances are the same but their displacements are different. How?
What is drive different directions
400
A dolphin sees a school of fish and travels from 2.0 m to 13m to catch them. If it took him 5.7 seconds to travel that distance, what is his speed?
What is 1.9m/s
400
An archer draws her bow and stores 34.8 J of elastic potential energy in the bow. She releases the 63g arrow, giving it an initial speed of 28m/s. How efficient is the transfer of the elastic potential energy of the bow to the kinetic energy of the arrow?
What is 71%
400
If Ricky lifts an object 5.2m into the air and the object has potential energy of 52.7 J, then what is the mass of the object?
What is 1.0kg
400
Which of the following is NOT true about a pendulum?
a) all the energy is gravitational potential energy at the top of the swing
b) all the energy is gravitational potential energy at the bottom of the swing
c) all the energy is kinetic energy at the bottom of the swing
d) the energy is partly gravitational potential energy and partly kinetic energy between the top and bottom of the swing
What is B
500
Given a position-time graph, what does the slope tell us?
What is velocity
500
A driver is on a highway that has provided an odometer test zone in which signs mark every kilometer for 25km. He checks his watch and sees that it is 1:16pm when he passes the 5.0km. When he passes the 25 km marker, his watch reads 1:31pm. What was his average speed?
What is 22m/s
500
You are having fun on a water slide. You start from the top of the water slide, which is 2.7m above the surface of the water. If you enter the water with a speed of 4.8m/s, how efficient is the water slide in converting your gravitational potential energy into kinetic energy. Assume your mass is 58kg.
What is 43%
500
From the top of an 80m hill, a 60kg downhill skier starts from rest and then skis down to the base. Assuming there is no friction, how fast is the skier travelling when he is 40m from the base of the hill?