Chapter 1 Forces and Motion

Front

What is friction?

Back

Friction is a force caused by two surfaces rubbing against each other, opposing the motion of an object.

Front

How do you calculate speed?

Back

Speed is calculated by dividing the distance traveled by the time taken. Formula: Speed = Distance / Time.

Front

What does a motion graph showing a horizontal line indicate?

Back

A horizontal line on a motion graph indicates that the object is at rest.

Front

What is the formula for acceleration?

Back

Acceleration is calculated using the formula: Acceleration = Force / Mass.

Front

If a bird has a mass of 2 kg and is pushed with a force of 2 N, what is its acceleration?

Back

1 m/s².

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What does it mean if an object is accelerating?

Back

An object is accelerating if it is changing its velocity, which can occur by speeding up, slowing down, or changing direction.

Front

What is the relationship between mass and acceleration?

Back

According to Newton's second law, the greater the mass of an object, the less it will accelerate when a given force is applied.