Science
Read about my science project on Gradient, Velocity, and Potential Energy
Science Question:
How does the gradient of a ramp affect the speed and the distance travelled of a
marble?
marble?
Background research:
Everyone has been on a bike and when you go down a hill you go faster because
of the gradient of the slope. Gradient means the angle of the item, Velocity is the
time from when you drop something to the time it hits the ground that also ties in with
potential energy if you have a lot of time to drop, so if you have a ball land you drop
it from the top of a sky tower it will have a lot of potential energy so it can build up
speed. For example If a car is going 60 kilometers an hour and it turns it will lose the
potential energy because of the impact of the turn.
of the gradient of the slope. Gradient means the angle of the item, Velocity is the
time from when you drop something to the time it hits the ground that also ties in with
potential energy if you have a lot of time to drop, so if you have a ball land you drop
it from the top of a sky tower it will have a lot of potential energy so it can build up
speed. For example If a car is going 60 kilometers an hour and it turns it will lose the
potential energy because of the impact of the turn.
Hypothesis:
The steeper the gradient the faster the speed of the marble will go.
Materials & Method
Materials:
- Wood
- Measuring tape
- Loctite
- Saw
- Drill
- Wire
- A Parent (Recommended)
- Screws
- Nails
- Stop watch
- Marble
Method:
- Place all the materials that are required above, all together on a wooden bench.
- Take a piece of wood and place it on the wooden bench letting 10 cm overhang the edge.
- Then grab the drill and a screw. Then drill the wood into the wooden bench so it doesn't move around.
- After you have done that ask an adult to cut the wood in what angle you want.
- Then unscrew the screw and make another ramp but at a different height or you could use the same ramp and adjust the height with books or more wood.
- Test the marble on each three of the ramps. Start the timer from when the marble is released at the top, time until it comes to a stop.
- Measure the distance travelled from the end of the ramp.
- Record both the distance travelled and the time taken in a table. Use this data to calculate the speed for each trial.
- Complete 10 trials for each ramp.
- Analyse the data
What would you do for your science? or
What are you doing for science? Tell me in the comments down below.
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