the distance and direction of your current position from where you started
What is displacement?
100
Acceleration due to gravity acting on the mass of an object
What is weight?
100
a substance through which a mechanical wave passes.
What is a medium?
100
The height of an object times acceleration due to gravity times the mass of the object.
What is potential energy?
100
work can be calculated from these.
What are force and distance?
200
The acceleration of an object that changes speed fro 1 m/s to 7 m/s in 3 seconds.
What is 2 m/s squared?
200
It will be unequal for objects of different masses experiencing the same force.
What is acceleration?
200
An ocean wave has a wavelength of 9 m and a frequency of 0.42 waves/second, so its speed is...
What is 3.78 m/s?
200
A falling ball has a potential energy of 5 J and a kinetic energy of 10 J. The total is 15 J.
What is the ball's mechanical energy?
200
If something has 200 J mechanical energy and 165 J potential energy, then it has this much kinetic energy.
What is 35 J?
300
You can't describe a person's location without this.
What is a reference point?
300
The acceleration of a 10 kg chair moving across a carpet when pushed with a force of 20 N. The carpet applies a frictional force of 5 N against the chair.
What is 1.5 meters per second squared?
300
A wave that goes through a gap experiences this type of direction change
What is diffraction?
300
By increasing the speed at which you do work, you increase your....
What is power?
300
This happens if you put a pencil in a vacuum.
How does a pencil get dusty?
400
It takes a cheetah running at a speed of 30 meters per second ________ seconds to run 90 meters.
What is 3 seconds?
400
A block is sliding down a ramp. One way to make it accelerate faster is to reduce....
What is friction?
400
The frequency of a wave with a wavelength of 4 m and a speed of 2.5 m/s is...
What is 0.625 waves/second?
400
velocity has a greater effect than mass on kinetic energy
Which has a greater effect on kinetic energy, velocity or mass?
400
An example is a horse pulling a carriage with a force of 5N a distance of 5 m.
What is work?
500
Two runners start a race. After 2 seconds, they both have the same velocity. If they both started at the same time, their average accelerations are _____________.
What is the same?
500
The principle that says that when one object exerts a force on another object, the second object exerts an equal and opposite force on the first object.
What is Newton's third law of motion?
500
two singers are much louder than one singer. This is because of the way their sound waves interact.
What is constructive interference?
500
If a box is lifted 1.5m with a force of 150 N, the answer is 225 J.
What is the amount of work done?
500
The principle says that when two objects collide the total momentum does not change.
What is the principle of conservation of momentum?