Definitions & Units
These are the correct units for measuring displacement and distance.
What are meters (m)
A wind turbine spinning is an example of this kind of energy.
What is kinetic energy?
The slope of a position-time graph tells us this about an object's movement.
What is velocity?
A car travels 100 m North in 5 seconds. Its velocity is this.
What is 20 m/s North?
Ms Farnell (60 kg) climbs to the top of a 5000m high mountain. Her potential energy at the top of the mountain is this.
What is 2.94 x 106 J?
Displacement, velocity, acceleration, and force are all examples of this.
What are vectors?
If you ran three times around a 400 m track, your displacement is this.
What is 0 m?
A curved line on a position time graph would tell me this.
What is acceleration?
A car slows from 25 m/s to stopped in 5 seconds. This is the car's rate of acceleration.
What is -5 m/s2?
Mr. Rojas pushes a box for 25 m, completing 375 J of Work to the box. The force he exerted on the box is this.
What is 15 N?
These units show how fast an object is moving.
What are meters per second (m/s)?
A battery contains this type of energy. (Hint: This type of energy is the same type of energy as the food we eat)
What is chemical potential energy?
A flat line on a position-time graph shows an object is doing this.
What is standing still/not moving?
The time it takes for a bicycle to accelerates from 0 m/s to 10 m/s if its acceleration rate 2.5 m/s2.
What is 4 s?
Energy and Work are both examples of what type of quantity. (Hint: do they have a direction?)
What are scalar quantities?
The combination of units that create a Newton.
What is (kgm)/s2?
Mechanical Energy is a sum of these.
What is Potential and Kinetic Energy?
The area underneath a Force vs Distance graph represents this.
What is Work?
A student running at 3.2 m/s is travelling this many km/h.
What is 12 km/h?
A skateboarding dog (10 kg) flies down a steep ramp 10 m above the ground. At 5.0 m down the ramp, their speed is measured. The value of their speed is this.
What is 9.9 m/s?
A downward force exerted on all masses on Earth.
What is the force of gravity?
The first law of thermodynamics (aka the conservation of energy theorem) states this.
The area under the line of motion on a velocity-time graph shows this about the moving object?
What is displacement?
An object that has negative velocity and positive acceleration is doing this.
What is slowing down in the positive direction?
A hydroelectric dam converts this kind of energy into electrical energy.