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What kind of variables are the height of the ramp and the mass of a toy car?
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Does the height of a ramp affect the speed of a marble?
Yes.The higher the ramp the faster.
Does the height of a ramp affect a toy car's speed going down it?
Yes. The height of the ramp does affect the speed going down it the higher the ramp the faster the car goes down it
Is it possible to predict the speed of a marble after rolling down a ramp if you know the height of the ramp?
no impossible
What is the accereleration of 2kg mass slding down a frictionless ramp?
The mass of the object doesn't matter, but the answer does depend on the angle (steepness) of the ramp.
What is the relationship between the length of a ramp and the speed at the bottom?
The Object moving down the Ramp will have its POTENTIAL Energy (Speed=0) at the top of the Ramp changed to Kinetic Energy as it travels DOWN the Ramp. For any given INCLINE the LENGTH of the Ramp will dictate its HEIGHT. The higher the top of the ramp, the greater the Potential Energy to be Converted into Kinetic Energy. The Formula for K.E. is : K.E. = 1/2 Mass x Velocity2 (the 2 means Squared) So as the Potential Energy increases so does the Kinetic Energy. while the Mass is a Constant. Therefore the Velocity MUST increase as well to balance the K.E. equation.
When the mover pushes the box up the ramp there is friction between the box and the ramp What is the efficiency of the ramp?
It depends on the mass of the box, the force exerted, the total displacement and the height the box was moved.
How does the increasing the height of a ramp affect how far a ball rolls down ramp?
how does increasing the height of a ramp affect how far a ball rolls down the ramp
What is a part of an experiment that is being tested or the part that is changedn by the person doing the experiment?
You are talking about dependent and independent variables.For any experiment you are recording 2 bits of information. If you aren't, then you're not doing a proper experiment. Work out what 2 things you are measuring eg height of ramp and time it takes a toy to travel the ramp, mass of sugar and time it takes to dissolve and a chemical reaction time at different temperatures.Work out your 2 variables (things you are measuring - distance, time, volume, weight etc).Then put your variables into the following sentence:The x depends on the y.For the above examples the time it takes depends on the height of the ramp makes more sense than the height of the ramp depends on the time it takes... So the time it takes is dependent on the height of the ramp (independent).The mass of sugar depends on the time it takes to dissolve makes no sense, but the time it takes to dissolve depends on the mass of the sugar tells us the time is dependent and the mass is independent.The speed of reaction is dependent on the temperature is clearer than the temperature depends on the speed of reaction. Speed is dependent, temperature is independent.If that doesn't help then ask yourself which measurement you control. In the above examples we controlled the height of the ramp (we had to move it, and could have changed our mind), the mass of the sugar (we had to weigh it and could have changed our mind) and the temperature (we had to heat it and we could have changed our mind). We control the independent variable. The result DEPENDS on how we set it up. So the measurement we don't control is the dependent variable.
How do you work out the gradiant on a ramp?
Divide the height of the ramp by the length of the ramp (rise over run).
How does the height of a ramp affect the speed of a rolling object?
At the bottom of the ramp, the higher the ramp the faster the speed, ignoring frictionl forces The speed varies as the square root of the height
Does the height of a ramp affect the speed of a marble?
Yes.The higher the ramp the faster.
Which has a greater mechianical advantage short ramp and a long ramp both reach a height of 1m?
The long ramp.
Rebecca is conducting an experiment to see if the height of a ramp affects the speed at which a marble rolls down the ramp What should be the only variable in Rebecca's experiment?
Dependant variable Height of the ramp
Does the height of a ramp affect a toy car's speed going down it?
Yes. The height of the ramp does affect the speed going down it the higher the ramp the faster the car goes down it
What is the Kinetic Energy of the trolley at the top of the ramp if a trolley of mass is 25Kg and is released from the top of a ramp which stands at a height of 3m?
What is the Kinetic Energy of the trolley at the top of the ramp if a trolley of mass is 25Kg and is released from the top of a ramp which stands at a height of 3m? Mass = 25 Kg Height = 3 m This is an energy problem. At the top of the ramp, the trolley is at rest and 3m above the base line. Potential Energy = Weight * height Weight = mass * acceleration due to gravity Acceleration due to gravity = 9.8m/s^2 Potential Energy = 25 kg * 9.8m/s^2 * 3 m Potential Energy = 735 Joules When the trolley reaches the bottom of the ramp, all the potential energy has been converted to Kinetic energy. Potential Energy = 735 Joules = Kinetic energy Kinetic energy = ½ * mass * velocity^2 Kinetic energy = ½ * 25 * V^2 = 735 multiply 735 by 2 and divide by 25 V^2 = 58.8 V = 7.67 m/s
Is it possible to predict the speed of a marble after rolling down a ramp if you know the height of the ramp?
no impossible
What is the accereleration of 2kg mass slding down a frictionless ramp?
The mass of the object doesn't matter, but the answer does depend on the angle (steepness) of the ramp.
