Bell Work

1. Gravitational Potential Energy increases if height (increases or decreases)?

2. Attractive objects gain more potential energy when they are (closer or farther apart?

3. Repulsive objects gain more potential energy when they are (closer or farther apart?

1. An object's gravitational potential energy is partly dependent on its acceleration due to gravity (9.8 m/s2 near Earth's surface). What two other factors determine the object's gravitational potential energy?

A. mass and heightB. kinetic energy and speedC. time and massD. speed and height

A youth organization is having its annual pinewood model car race. The unpowered cars, like the one shown below, are lined up at the top of a hill and ready to begin.

2. What gives the cars their potential energy?A. their wheelsB. their speedC. frictionD. gravity

Which type of energy depends on the distance between two particles and the charge of each particle?

A. chemical potential energyB. gravitational potential energyC. kinetic energyD. electrical potential energy

3. When an object is lifted 10 meters off the ground, it gains a certain amount of potential energy. If the same object is lifted 20 meters off the ground, its potential energy is….

A. the same.B. three times as much.C. twice as much.D. four times as much

Betty hits a baseball. At which point along the baseball's path does it have the most gravitational potential energy?

A. point 1B. point 2C. point 3D. point 5

Which of the following would have the most potential energy?

A. a rollercoaster that is at the bottom of a hillB. a car moving along a flat road at 60 mphC. a rock sitting on the edge of a cliffD. a ball rolling on a flat surface

Magnetic potential energy is dependent on

A. the position of magnetic objects relative to one another.B. the shape and size of a magnet.C. the distance a magnet has moved from its resting position.D. the mass of a magnet and how fast the magnet is moving.

Bart and his friends go down a water slide. Later, Bart makes the drawing below, showing the order in which they went down the slide.

In Bart's drawing, who has the most gravitational potential energy, if he and his friends are each the same mass?

A. Bart B. Amy C. Max D. Kate

Two electrically charged particles in close proximity to one another have electrical potential energy. The amount of energy is dependent on the charges of the particles and the distance between the particles.

The table below shows the positions of two particles relative to each other. The particles have the same charge.

At which position do the particles have the greatest electrical potential energy?A. position 2B. position 4C. position 3D. position 1