Physics Quiz

What is the definition of speed?

• The distance traveled per unit of time.

• An object's speed and direction of motion.

• A change in velocity over a certain period of time.

• The force applied to an object.

What is the definition of velocity?

• The distance traveled per unit of time.

• An object's speed and direction of motion.

• A change in velocity over a certain period of time.

• The force applied to an object.

What is the definition of acceleration?

• The distance traveled per unit of time.

• An object's speed and direction of motion.

• A change in velocity over a certain period of time.

• The force applied to an object.

What does gravity tend to do to all objects?

• Push them away from the center of the earth

• Pull them toward the center of the earth

• Make them float in the air

• Push them toward the sun

What is the term used to describe the acceleration of any object falling toward the earth?

• Kinetic Energy

• Potential Energy

• Gravitational Acceleration

• Centripetal Force

What is the value of gravitational acceleration in meters per second squared (m/sec²)?

• -9.8 m/sec²

• -32 m/sec²

• -9.8 ft/sec²

• -32 ft/sec²

What is the value of gravitational acceleration in feet per second squared (ft/sec²)?

• -9.8 m/sec²

• -32 m/sec²

• -9.8 ft/sec²

• -32 ft/sec²

What is a projectile?

• A stationary object

• Any moving object upon which the only active force is gravity

• An object that moves due to wind

• A moving object with multiple active forces

What does the symbol θ represent in the context of human cannonball training?

• Initial Velocity

• Firing Angle

• Distance

• Time

What does V_i represent in the context of calculating initial velocity for a human cannonball?

• Gravitational Acceleration

• Horizontal Distance Traveled

• Initial Velocity

• Firing Angle