Summative Test

1. Which of the following best defines work?

• a. Any physical activity

• b. The application of force to move an object a certain

• c. The measurement of an object's energy

• d. The displacement of an object

2. Kinetic energy depends on which of the following variables?

• a.  Mass and velocity

•   b. Force and displacement

• c. Height and mass

•     d. Time and velocity

3.What is the formula for calculating kinetic energy?

•        a. KE = mv²

•         b. KE = 0.5mv²

• c. KE = mgh

•   d. KE = Fd

4.Which of the following statements is true about potential energy?

• a. It is the energy of motion.

• b. It depends on the object's velocity.

• c.  It is stored energy due to an object's position.

• d. It is always positive.

The potential energy of an object at a certain height above the ground is primarily determined by which of the following?

• a.  Mass of the object

• b.  Acceleration due to gravity

•   c.  Distance from the ground

• d.  Force exerted on the object

6.When does an object have the highest potential energy in a gravitational field?

• a. When it is at rest

• b. When it is in motion

• c. When it is at its lowest point

• d. When it is at its highest point

7.Which of the following is a unit of work?

• a. Newton-meter

•     b. meter-second

• c. Watts

• d. Kilogram-meter

8. If you push against a wall with all your might, but the wall does not move, how much work have you done on the wall?

• a. A lot of work

• b. No work

• c. Some work

• d. Impossible to determine

9.Which of the following is a form of potential energy?

•  a. Thermal energy

•   b. Electrical energy

• c. Gravitational energy

• d.  Sound energy