Semester Review Pt 2

Front

What happens to the gravitational force between Earth and a satellite when the satellite is moved to a distance of three Earth radii above the surface?

Back

The gravitational force between Earth and the satellite decreases.

Front

What factors determine the horizontal distance traveled by a projectile launched from the ground?

Back

The initial horizontal speed and the time of flight determine the horizontal distance.

Front

What is the formula for calculating the normal force acting on an object resting on a surface?

Back

The normal force is equal to the weight of the object if there are no vertical forces acting on it.

Front

What is centripetal force and how does it relate to an object moving in a circular path?

Back

Centripetal force is the net force acting towards the center of a circular path, keeping the object in circular motion.

Front

How do you calculate the time it takes for an object to fall from a certain height?

Back

Use the formula t = √(2h/g), where h is the height and g is the acceleration due to gravity.

Front

What is the relationship between the mass of an object and the gravitational force it experiences?

Back

The gravitational force is directly proportional to the mass of the object.

Front

What is the significance of the initial vertical speed in projectile motion?

Back

The initial vertical speed determines the maximum height and time of flight of the projectile.

Front

How does the angle of launch affect the range of a projectile?

Back

The optimal angle for maximum range is 45 degrees in a vacuum.

Front

What is the effect of air resistance on projectile motion?

Back

Air resistance decreases the range and height of the projectile compared to motion in a vacuum.

Front

What is the formula for calculating gravitational force between two masses?

Back

F = G(m1*m2)/r^2, where G is the gravitational constant, m1 and m2 are the masses, and r is the distance between their centers.