Motion Tree Diagram--Newton’s 1st Law

Which of the following conditions describes a state where forces are balanced according to Newton's 1st Law?

• Changing Velocity

• At Rest

• Increasing Speed

• Decreasing Speed

Answer explanation

At Rest describes a state where forces are balanced according to Newton's 1st Law.

What is the acceleration (a) when an object is moving at a constant velocity?

• a ≠ 0

• a = 0

• a > 0

• a < 0

Answer explanation

When an object is moving at a constant velocity, its acceleration is 0. This is because acceleration is the rate of change of velocity, and if the velocity is constant, there is no change in velocity over time.

In which scenario are forces unbalanced according to Newton's 1st Law?

• At Rest

• Steady Pace

• Changing Velocity

• Constant Velocity

Answer explanation

In the scenario of changing velocity, forces are unbalanced according to Newton's 1st Law as an external force is causing the change in velocity.

What happens to both acceleration and velocity when an object is increasing speed?

• Both have the same direction

• Both have the opposite direction

• Acceleration is zero

• Velocity is zero

Answer explanation

When an object is increasing speed, both acceleration and velocity have the same direction as they are both increasing in magnitude.

What is the velocity (v) of an object at rest?

• v ≠ 0

• v > 0

• v < 0

• v = 0

Answer explanation

The velocity of an object at rest is 0, so v = 0 is the correct choice.

Which type of relationship is described when the independent variable (x) directly affects the dependent variable (y)?

• Direct

• Inverse

• No relationship

• Non-linear

Answer explanation

The correct choice is 'Direct' because in a direct relationship, the independent variable (x) directly affects the dependent variable (y).

Which type of relationship is described when the independent variable (x) inversely affects the dependent variable (y)?

• Direct

• Inverse

• No relationship

• Non-linear

Answer explanation

When the independent variable (x) inversely affects the dependent variable (y), it is described as an 'Inverse' relationship.

Which type of relationship is described when the independent variable (x) does not affect the dependent variable (y)?

• Direct

• Inverse

• No relationship

• Non-linear

Answer explanation

Correct choice highlighted: No relationship

Which type of relationship is described when the independent variable (x) affects the dependent variable (y) with a non-linear pattern?

• Direct

• Inverse

• No relationship

• Non-linear

Answer explanation

Non-linear relationship is described when the independent variable affects the dependent variable with a non-linear pattern.

What does the graph showing "Time to Read (y)" versus "Number of pages (x)" represent?

• Direct relationship

• Inverse relationship

• No relationship

• Non-linear relationship

Answer explanation

The graph represents a direct relationship between 'Time to Read' and 'Number of pages' where as the number of pages increases, the time to read also increases.