Physical Science Semester 1 Units (2024)

Front

What is frequency in the context of waves?

Back

Frequency is the number of waves that pass a given point in one second, measured in Hertz (Hz).

Front

What is electrical energy?

Back

Electrical energy is the energy of moving electrons or electric charges.

Front

How do you calculate acceleration?

Back

Acceleration can be calculated using the formula: a = F/m, where 'a' is acceleration, 'F' is force, and 'm' is mass.

Front

What is net force?

Back

Net force is the total force acting on an object after all the forces are combined. It determines the object's acceleration and direction of movement.

Front

What type of force keeps an object stationary on a ramp?

Back

The type of force that keeps an object stationary on a ramp is called tension.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = m * a, where 'F' is force, 'm' is mass, and 'a' is acceleration.

Front

What is the relationship between mass and acceleration?

Back

According to Newton's second law, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the role of friction in motion?

Back

Friction is a force that opposes the motion of an object, acting parallel to the surface of contact.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, such as the Earth and an object.