What is the primary purpose of distinguishing between a physical model and a real-world object in scientific analysis for a movie stunt?

To reduce the overall budget of the film production.

To ensure the model is visually indistinguishable from the real object on camera.

To predict and compensate for differences in physical behavior due to scale.

To prove that models are always superior to using real objects for stunts.

If a real car and a model car are both released down the same ramp, why might the model car appear to move differently, even ignoring air resistance?

The model car is a different color.

The ramp's angle is effectively steeper for the model.

Frictional forces are different.

The force of gravity does not affect models.

The force that propels a vehicle forward from its engine.

The force that resists motion when two surfaces slide against each other.

The force of gravity that holds a vehicle onto the road surface.

The force generated by an object's momentum as it moves.

The car's color and the brightness of its headlights.

The model's top speed and the material of its windows.

The vehicle's mass and the friction between its tires and the driving surface.

The engine sound and the number of seats inside the model.

The model car has significantly less mass than a real car.

The frictional force on the model car is too high.

The force of gravity is stronger on the movie set.

The model car's tires are too wide for its body.