Podcast
Questions and Answers
What does a negative gradient in a distance-time graph indicate?
What does a negative gradient in a distance-time graph indicate?
- Stationary
- Acceleration
- Returning back to the starting point (correct)
- Deceleration
In a velocity-time graph, what does a horizontal line represent?
In a velocity-time graph, what does a horizontal line represent?
- Deceleration
- Constant speed (correct)
- Acceleration
- Zero velocity
What does a curved line in a distance-time graph signify?
What does a curved line in a distance-time graph signify?
- Velocity is changing (correct)
- Acceleration
- Constant speed
- Deceleration
What is the effect of friction between two surfaces?
What is the effect of friction between two surfaces?
To find the resultant of forces acting along the same line, what should you do if they are in opposite directions?
To find the resultant of forces acting along the same line, what should you do if they are in opposite directions?
What happens to the acceleration of a body falling in a uniform gravitational field as it approaches terminal velocity?
What happens to the acceleration of a body falling in a uniform gravitational field as it approaches terminal velocity?
According to Newton’s first law, what happens to an object's velocity if no resultant force acts on it?
According to Newton’s first law, what happens to an object's velocity if no resultant force acts on it?
What is the term used to describe the distance travelled between realizing the need to brake and actually pressing the brakes?
What is the term used to describe the distance travelled between realizing the need to brake and actually pressing the brakes?
What contributes to an increase in the thinking distance of a driver when they notice a hazard?
What contributes to an increase in the thinking distance of a driver when they notice a hazard?
When does a body falling in a uniform gravitational field reach terminal velocity?
When does a body falling in a uniform gravitational field reach terminal velocity?
What causes an increase in the stopping distance of a vehicle?
What causes an increase in the stopping distance of a vehicle?
Which force is responsible for potentially changing the size and shape of a body?
Which force is responsible for potentially changing the size and shape of a body?
What is acceleration?
What is acceleration?
Which of the following is true about terminal velocity?
Which of the following is true about terminal velocity?
What is the braking distance of a car primarily dependent on?
What is the braking distance of a car primarily dependent on?
What does deformation refer to?
What does deformation refer to?
What is thinking distance related to in terms of braking?
What is thinking distance related to in terms of braking?
In which units is acceleration typically measured?
In which units is acceleration typically measured?
