Question

use the drop - down menus to complete each sentence. to run the physics cart, the fan speed of the cart is manipulated. this is the variable. the cart accelerates due to the speed of the fan. acceleration is therefore the variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the

Explanation:

In an experiment, the variable that is deliberately changed is the independent variable. Here, the fan - speed is manipulated, so it's the independent variable. The variable that changes in response to the independent variable is the dependent variable, so acceleration is the dependent variable. A constant is something that remains the same throughout the experiment, and the mass of the cart (for example) could be held constant.

Answer:

1. independent
2. dependent
3. mass (or other reasonable parameter like shape etc. that can be held constant)