If the mass of one object is doubled, how does the gravitational force change?

Two planets of equal mass orbit each other. If the distance between them triples, the gravitational force between them becomes:

A satellite orbits Earth at a constant height. What happens to the gravitational force acting on it if its mass is doubled?

If the radius of Earth were doubled but its mass remained the same, the gravitational acceleration on its surface would be:

The gravitational force between two objects is 100 N. If the distance between them is halved, the new gravitational force is:

A person’s weight on Earth is 600 N. What would their weight be on a planet with the same mass as Earth but twice the radius?

Which force must be overcome to start an object sliding on a surface?

If a 50 N force is applied to a box but it does not move, the force of static friction is:

The coefficient of kinetic friction is always:

A 10 kg box slides down a frictionless ramp at 30°. The normal force on the box is:

If a 500 N box slides at constant speed across a surface with μ_k = 0.2, the force of kinetic friction is:

The direction of the frictional force on a sliding object is:

Hooke’s Law states that the force exerted by a spring is proportional to:

If a spring is stretched to twice its displacement, the force it exerts will:

A spring has a constant of 200 N/m. What is the force required to stretch it by 0.1 m?

The negative sign in Hooke’s Law represents:

If a spring stores 5 J of potential energy when stretched by 0.5 m, its spring constant is:

The centripetal force on an object in circular motion is always directed:

Which of the following quantities remains constant for uniform circular motion?

The formula for centripetal acceleration is:

A car rounds a curve of radius 50 m at 20 m/s. The centripetal force needed is (mass = 1000 kg):

If the radius of a circle doubles while the speed remains constant, the centripetal acceleration:

In circular motion, the velocity vector of the object is:

The net force acting on an object in uniform circular motion is:

If a car’s speed doubles while rounding a curve, the required centripetal force:

The period of an object in circular motion is:

A ball on a string is swung in a vertical circle. At the top of the circle, the tension in the string is:

A child whirls a toy plane in a horizontal circle at constant speed. If the radius is reduced by half, the centripetal force will:

A satellite is in orbit around Earth. Its centripetal force is provided by:

An object moves in a circular path at constant speed. The direction of the net force acting on it is:

A race car rounds a curve at constant speed. Which statement is true?

A conical pendulum swings in a horizontal circle. The tension in the string provides:

If a car travels around a circular track of radius 100 m at a constant speed of 30 m/s, the centripetal acceleration is:

If an object moves in a circular path and its speed doubles, the required centripetal acceleration:

A rollercoaster at the top of a loop experiences a normal force. This force acts:

The unit for centripetal force is:

For a car to safely navigate a curve, the frictional force between the tires and the road must equal:

The value of Universal Gravitational constant is

A man standing on a scale in an elevator notices that the scale reads 40 newtons greater than his normal weight. Which type of movement of the elevator could cause this greater-than-normal reading?

A block of mass m is being slid at constant speed across a horizontal concrete floor by a force parallel to the floor. Which pair of quantities could be used to determine the coefficient of kinetic friction for the block on the concrete?

Vectors in two dimensions are ___________

Two objects are released at the same time. One object is dropped in the vertical direction and one is launched horizontally into projectile motion. Which object hits the ground first?

A soccer ball is kicked and follows the path as shown. At which point is the vertical acceleration equal to - 9.80 $$\frac{m}{s^2}$$  ?

Two identical balls, X and Y, are projected horizontally from the edge of a cliff. The path of each ball is shown in the picture. Which of the following statements are false?

A rock is thrown in the air as shown in the picture. If it takes 5 seconds to reach point D, how long will take the rock to reach the ground from point D?

Based on the picture, how would you find the vertical component of the soccer ball's velocity?

When vectors form a right angle, we can find the resultant vector by using:

A care package is dropped from a plane. Which of the paths shown in the picture will the package take?

A penny is dropped from a building that is 125 m high. The penny is initially at rest. Approximately how long does it take the penny to hit the ground?

As the angle of the incline increases, what happens to the normal force?

Given the FBD, which of the following must be true?

If there is no friction, then the acceleration would be equal to

Three forces of equal magnitude act on the box shown. One force is upward, one downward, and one rightward. Which of the following statements must be true based on this information? Select two answers.