Conceptual physics quiz 3

Passengers in a highflying jumbo jet feel their normal weight in flight while passengers in the orbiting space shuttle do not this is because passengers in the space shuttle are

Without support force

A projectile is fired horizontally in a region of no air resistance the projectile maintains its horizontal component of velocity because

It is not acted on by any horizontal forces

A projectile is launched at ground level in angle of 15° above the horizontal and lands down range what other projection angle for the same speed would produce the same down range distance

75°

Without air resistance a projectile fired horizontally at 8 km/s from the top of a mountain will

Accelerate downward at g as it moves horizontally return later to its starting position and repeat it's falling behavior trace a curve that matches the earths curvature (all of the above)

A rock is thrown up word at 50° with respect to the horizontal as it rises if the vertical component of velocity

Decreases

The chef at the infamous Fattening Tower of pizza tosses a spinning disk of uncooked pizza dough into the air. The disks diameter increases during the flight while it's rotation speed

Decreases

The concept of force is not fundamental to

Einstein's theory of gravitation

A weightless astronaut in an orbiting shuttle is

Like the shuttle pulled by earths gravitation

A satellite in an elliptical orbit travels at constant

None of these acceleration speed velocity

A boy plays solitary Seesaw by placing a long plank over a small rock and sitting at one end of the plank. When the seesaw is balanced the boys mass is

Not enough information is given

The circular path of a satellite orbiting the earth is characterized by a constant

Radial distance acceleration speed ( all of the above)

Suppose you are at the center of a large freely rotating horizontal turntable in a carnival fun house as you crawl towards the edge the angular momentum of you in the turntable

Remains the same but the RPMs decrease

Neglecting air resistance which will roll from rest to the bottom of an incline first an empty jar or the jar filled with peanut butter

The filled jar

A carnival has a Ferris wheel where the seats are located halfway between the center and outside rim. Compared with the Ferris wheel with seeds that are on the outside rim your angular speed while riding on the Ferris wheel would be

The same and your tangential speed less