Physics 8 semester one review

Front

What is the correct unit for distance in kinematics?

Back

The correct unit for distance in kinematics is meters (m).

Front

What does the slope of a distance-time graph represent?

Back

The slope of a distance-time graph represents the speed of the object.

Front

How do you calculate work done on an object?

Back

Work done (W) is calculated using the formula W = F × d, where F is the force applied and d is the distance moved in the direction of the force.

Front

What is the formula for calculating potential energy?

Back

Potential energy (PE) is calculated using the formula PE = m × g × h, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What is the relationship between mass, acceleration, and force?

Back

The relationship is described by Newton's second law: F = m × a, where F is force, m is mass, and a is acceleration.

Front

What is the unit of work in the International System of Units (SI)?

Back

The unit of work in SI is the Joule (J).

Front

How do you determine the speed of an object from a graph?

Back

The speed of an object can be determined by calculating the slope of the distance-time graph.

Front

What is kinetic energy and how is it calculated?

Back

Kinetic energy (KE) is the energy of an object in motion, calculated using the formula KE = 0.5 × m × v², where m is mass and v is velocity.

Front

What does a steeper slope on a distance-time graph indicate?

Back

A steeper slope indicates a higher speed of the object.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.