Unit 5 Review

Front

What happens to your measured weight in an airplane flying at constant speed compared to your weight on the surface of the Earth?

Back

Your measured weight in the airplane is less than your weight on the surface of the Earth due to the effects of acceleration and the gravitational force acting on you.

Front

How do the gravitational forces between the Earth and the Moon compare?

Back

The Earth and the Moon pull on each other equally due to Newton's third law of motion.

Front

What is the formula for centripetal force at the top of a vertical circular motion?

Back

Fc = Ft + Fg, where Ft is the tension force and Fg is the gravitational force.

Front

What is the centripetal force acting on a skier at the top of a hill?

Back

Fc = Fg - Fn, where Fg is the gravitational force and Fn is the normal force.

Front

How does the normal force change when you are at the top of a Ferris wheel in motion?

Back

The normal force (Fn) is smaller than the gravitational force (Fg) when you are at the top of the Ferris wheel.

Front

What is centripetal force?

Back

Centripetal force is the net force that acts on an object moving in a circular path, directed towards the center of the circle.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as Weight = mass × gravitational acceleration (W = mg).

Front

What is Newton's third law of motion?

Back

For every action, there is an equal and opposite reaction.

Front

What is the effect of altitude on weight measurement?

Back

Weight measured at higher altitudes is less than weight measured at sea level due to reduced gravitational pull.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, proportional to the product of their masses and inversely proportional to the square of the distance between their centers.