PE & KE
Position, direction, speed of unbalanced forces
Calculating Speed
Measure and graph changes in motion
Investigate inclined Planes
100
Kinetic energy is
Energy in motion (Moving)
100
An object at rest will remain at rest until....
An object in motion will remain in motion until..
An unbalanced force acts upon it.
100
What is the formula for speed?
Speed= Total distance / total time
100
CHANGES IN MOTION
Including, but not limited to:
2 answers
- Distance over time
- Speed over time
100
When pushing a ball up a inclined plan you need more force the blank the inclined plane?
higher/tallest
200
Potential Energy is
2 parts
Stored Energy
Has the ability to do work
200
When an unbalanced force acts upon something it changes the objects.....
3 answers
Direction, Speed, position
200
A student who was running cross country jogged 2.0 hours and covered a distance of 14.0 kilometers. What was the average speed?
7.0 km/hr
200
Interpreting and comparing graph lines showing the following scenarios: 4 Answers
- Constant speed
- Increasing speed
- Decreasing speed
- No motion (stopped)
200
When raising an object to a specific height, the amount of force will be less when using an inclined plane compared to the amount of force needed to do the same work without an inclined plane. True or False?
True
300
According to a Roller coaster where do you have the greatest PE and greatest KE?
2 answers
PE: Top of roller coaster
KE: Bottom of roller coaster
300
If you hit a pop fly to the outfield the ball rises in the air and is acted upon by a force of gravity. The force causes the ball to...
3 Answers
Speed, Direction, speed
Slow down, change direction, speed up as it falls to the ground.
300
A ball rolls down an inclined plan at 2.42 sec. What is the Average speed?
2.07 m/s
300
The runner speed ..... and distance
2 answers
Constant and covered more distance
300
Which is true about this picture?
As the length of the ramp increases, the force needed decreases.
400
If two birds are flying at the same speed but different heights would they have the same potential and kinetic energy?
2 answers
They would have the same kinetic but different potential due to different heights.
400
A ball is given a single push up a inclined plan. Which of the following will not change due to an unbalanced force of gravity and why?
Direction, speed, mass and position?
Mass
400
The object is .... 2 answers
Accelerating and changing speed
400
Calculate the speed between 3 and 5 seconds
6.5 m/s
500
Give me 3 examples of kinetic and potential energy.
Running, walking, jumping, standing, book on a shelf, battery etc