# Why does a marble roll down a ramp?

The kinetic energy of an object depends on the velocity of the object. A marble at the top of the ramp has more gravitational potential energy than one released lower on the ramp, and when that marble is re- leased and begins to roll down the ramp, that potential energy is transformed into kinetic energy.

## What energy is used in a marble run?

When the marble begins to fly down the marble run, that energy is kinetic energy. To understand that gravity is the force that pulls everything down toward the earth. To understand that that marble teetering at the top of the ramp has the potential energy of gravity – which is the force that will pull it down the ramp.

## What happens when marbles collide?

When the marbles collide, Newton’s third law tells us that the force each exerts on the other is equal in strength and opposite in direction. Because the masses are the same, Newton’s second law tells us that the acceleration of the balls during the collision will also be equal and opposite.

## How do you find the velocity of a marble?

Students who are blind or visually impaired measure distance and time to calculate the speed at which a marble travels. Students measure the distance a marble rolls and the time it takes to roll. They then calculate the speed using the equation: Speed = Distance / Time.

## How does the height of a ramp affect the speed of a marble?

In other words, as you increase the starting height of the marble, the final velocity of the marble after rolling down the ramp increases quadratically.

## How does the height of a ramp affect the distance of a marble?

Increasing the height of the ramp will increase the distance the marble rolls.

## Does a marble have potential energy?

The gravitational potential energy of the marble depends on the height of the starting point compared to the ending point of the marble’s path. 3. Gravitational potential energy equals (mass)*(acceleration due to gravity)*(height). This can be written as P.E.= mgh.

## What force acts on the marble to slow it to a stop?

Friction acts as an opposite force on an object which makes the object in motion slow down, come to a stop, or move in the opposite direction given the amount of opposite force applied.

## What is the science behind marble maze?

When you release the marble, it begins to move through the maze as you tilt the cardboard base. Releasing the marble into the maze transforms the marble’s potential energy into kinetic energy. Kinetic energy is the energy of motion. Any object that has mass and is moving has kinetic energy.

## Are marbles collisions elastic or inelastic?

Elastic Collisions The collision between the two marbles in a previous example was an elastic collision. The kinetic energy of the first marble was completely transferred to the second marble.

## How does a marble conservation of momentum work?

In a collision, according to Newton’s third law of motion, momentum is conserved. That means what goes in, has to come out. That is why when you hit one marble into the stack, only one moves out. Momentum is kept the same.

## What happens when 2 objects with the same mass collide?

If it is a completely inelastic collision, they will come to a standstill. If it is a completely elastic collision, they will bounce off each other and travel at the same speed in the other direction.

## How could you determine the acceleration of the marble?

By timing the fall (or roll down) of the marble and measuring the distance rolled, we can calculate the final velocity of the marble and determine its acceleration due to gravity down an incline at different heights. Then we can graph the data, and use the slope of the line to calculate g.

## What is the average speed of the marble?

Answer. To begin, we know that the average speed of each marble at a different height is different. For example, for the smaller marble, at 3 cm, the marble’s average speed was 0.6 m/s, following 0.8 m/s, 1.12 m/s, 1.19 m/s, and 1.37 for a ramp height of 15 cm.

## Is the marble accelerating what is its acceleration?

As soon as the marble is over the edge of the table, it’s in free-fall, meaning that it begins accelerating straight down, under the influence of the Earth’s gravitational acceleration, 9.8 m/s2.

## Why does a ball roll faster down a steep slope?

The change in speed on slopes is due to gravity. If the hill is steep, then the ball will roll down the hill faster, while if you put the ball on a flatter section of land, the ball will roll at a slower rate.

## How does ramp angle affect velocity?

The speed/velocity of the car will gradually increase by the same amount every second. The steeper the slope (the bigger the angle of inclination of the ramp) that the car is rolling down, the faster the car will accelerate. This is because the amount of gravity experienced is dependent on the angle of the slope.

## Does increasing the height of a ramp affect how far a ball rolls?

The height of the ramp will change the speed and distance the ball rolls because when the ramp is higher, the ball will be higher. The higher the ball is the more gravitational potential energy it has; therefore more energy will be transferred to kinetic energy.

## Do heavier objects roll down a ramp faster?

Many people expect that a heavier wheel will naturally roll downhill faster than a lighter one. But when an object rolls downhill, its speed depends not on the weight of the wheel, but on where the weight is located. When weight is located far from the center of the wheel, the wheel is harder to get rolling.

## When would a marble have the most potential energy?

Initial motion come from the marble being at a certain height and from gravity pulling the marble downhill. The marble has more potential energy at the top of the roller coaster than at the bottom.

## How does ramp height affect speed?

It is hypothesised that as the angle of the ramp increases the speed of the car travels will also increase which results in shorter time for the car to travel down the ramp. This is predicted according to the theory of gravitational potential energy converting to kinetic energy.

## How do you find the kinetic energy of a marble?

This can be written as P.E.= mgh. The total kinetic energy of the marble is made of two parts, the kinetic energy due to its linear motion and the kinetic energy due to its rotation. A marble that is rolling has more kinetic energy than a marble that is sliding along at the same speed.

## How does a marble gain more potential energy?

As the marble rolls down the hill its potential energy is converted to kinetic energy (its height decreases, but its velocity increases). When the marble goes back up the loop its height increases again and its velocity decreases, changing kinetic energy into potential energy.

## Will a marble rolling down an incline?

No, because it is moving falling under the force of gravity an there is a net acceleration acting on the marble so it’s velocity keep on increasing with time.

## What causes a marble to speed up and slow down?

To slow down the marble, a force has to be applied in the opposite direction from the marble’s motion. Applying a force over a longer period of time results in a greater change in velocity. When we blew harder or more team members blew through their straws, the marble moved faster.