May the mass be with you
A hanging sign is 3.00 m above the ground and has 1500J of gravitational potential energy. Calculate the mass of the sign.
51.0kg
Convert 167m to km
0.167km
In a distance-time graph, a straight diagonal line represents what time of motion
uniform motion
A 5.0 kg hammer is lifted from the floor to a height of 5.2 m. Its increase in potential energy is
255 J
Ms. DeViller throws a boomerang north. It travels 25m east before it turns around and travels 23.0m west back to him. Determine the displacement
2.0m east
A student is calculating kinetic energy, yet the mass if given in grams. The student must do what to convert grams into kilograms.
Divide the number by 1000
The amount of seconds in 4.5 hours is
16 200s
The slope of a speed-time graph and a velocity-time graph represents this variable
acceleration
A 12 457g animal climbs up a ramp to the roof of a building that is 3.50 m above the surface of Earth. The gravitational potential energy stored in the person is
428 J
Ms. DeViller travels to Calgary and sees a sign that says the distance is 295km. She records her displacement and actually travels 275 km headed South in 3.5 hours.
The best way to write the distance along the highway from Edmonton to Calgary is
d= 295km
The kinetic energy of an object moving at a speed of 14.2 m/s was determined to be 950 J. The mass of the object is
9.42kg
The value of 6.5km/h in m/s is
1.81m/s
The area under a speed-time graph calculates this variable
distance travelled
A 70.0 g bullet is shot out of a rifle straight up into the air with a speed of 25.7 m/s. If all the kinetic energy is converted into potential energy, how high did the bullet go? (this requires 2 parts)
33.66 m
A student walks 10.0 m [E] in 7.00 s. Then he walks another 12.0 m [E] in 8.00 s. Determine the velocity
1.47m/s east
A crate falling with a force of 450 N, and the acceleration being 0.83 m/s2 has a mass of
542.2kg
The value of 24.7m/s in km/h is
88.92 km/h
A student is calculating acceleration but comes across a negative number. This answer represents what motion?
negative acceleration
Calculate the efficiency of an engine that consumes 2.10 X 103 J of energy to do 3.30 X 103J of work.
63.6%
An airplane flying at a velocity of 900 km/h [W] travels 400 km west. How long in seconds will the plane be in flight
1600s
A 30.0-kg child on a trampoline jumps vertically into the air at an initial speed of 1.60 m/s. Calculate how high the child will rise.
0.130m
The value of 1.65 X 103 m/s in km/h is
5940 km/h
Name all three conditions for work
1. must be movement
2. must be a force
3. force and distance must be in same direction
A seagull flying horizontally at 6.25 m/s carries a clam with a mass of 0.325kg in its beak. Calculate the total mechanical energy of the clam when the seagull is 30.0 m above the ground.
102 J
A baseball player uses a force of 150.0 N to draw back his bat by a distance of 0.250 m. He lets go of the bat accidentally and the 0.220 kg bat goes straight up into the air, travelling 50 m in 4.2 s. Calculate the kinetic energy
15.6 J