University:
Delaware County Community College
Course:
PHY 230 | Modern Physics
Academic year:

2023
Views:

129

Pages:

1
Author:

Remington Blackburn

● Which statement best compares the accelerations of two objects in free fall? The objects have the same acceleration. ● What determines the path that an object in projectile motion follows? (Ignore air resistance) gravity and inertia ● Why are objects that fall near Earth’s surface rarely in free fall? Air exerts forces on falling objects near Earth’s surface. ● Which factors affect the gravitational force between two objects? mass and distance ● Increasing which factor will cause the gravitational force between two objects to decrease? distance between the objects ● How would the path of the ball differ on Earth than on the moon? The ball would curve down more sharply on Earth than on the moon. ● Which change will always result in an increase in the gravitational force between two objects? increasing the masses of the objects and decreasing the distance between the objects ● Which describes an object in projectile motion? The object’s inertia carries it forward. ● Which object has a weight of about 22.5 N? the rock ● If the mass of each object is doubled, what is the gravitational force between the objects at the same distance? 400 N