Understanding Horsepower and Power Calculations

What is the first step in setting up the experiment to calculate the toy car's horsepower?

• Calculate the car's mass.

• Draw a start line at the front of the car.

• Change the angle of the ramp.

• Measure the car's speed.

How is the change in gravitational potential energy calculated in this experiment?

• By timing the car's movement.

• By changing the ramp's angle.

• By using the car's mass, gravity, and change in height.

• By measuring the car's speed.

What is the formula to convert power in watts to horsepower?

• Subtract the time taken.

• Multiply by 9.81.

• Divide by 745.7.

• Add the car's mass.

What happens when you change the angle of the ramp in the experiment?

• The car's speed decreases.

• The power calculation may change.

• The power calculation remains the same.

• The car's mass changes.

What additional physics concepts can be explored by changing the ramp angle?

• The car's RPM and torque.

• The car's color.

• The car's weight.

• The car's length.