Revision for pt1

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

• Speed

• Acceleration

• Distance

• Time

What is the equation for uniform acceleration?

• a = (v + u) / t

• a = (v * u) / t

• a = (v - u) / t

• a = (v - u) * t

Explain the difference between uniform and non-uniform acceleration.

• Uniform acceleration always results in a decrease in velocity.

• Uniform acceleration maintains a constant rate of change in velocity, while non-uniform acceleration results in a changing rate of change.

• Uniform acceleration is faster than non-uniform acceleration.

• Non-uniform acceleration is only applicable in space.

If an object has a constant velocity, what can you say about its acceleration?

• The acceleration is constant

• The acceleration is zero.

• The acceleration is negative

• The acceleration is increasing

How is acceleration calculated from a velocity-time graph?

• Acceleration is calculated by dividing velocity by time.

• Acceleration is calculated by multiplying velocity and time.

• Acceleration is calculated by integrating the velocity-time graph.

• Acceleration is calculated by finding the slope of the velocity-time graph.

Describe the shape of a displacement-time graph for an object with uniform acceleration.

• Straight line with positive slope

• Exponential growth curve

• Curved line with negative slope

• Step function

What does the area under a velocity-time graph represent?

• Displacement of an object

• Speed of an object

• Time elapsed

• Acceleration of an object

In which scenario would an object experience non-uniform acceleration?

• When the object is in free fall

• When the object is at rest

• When the object is in a vacuum

• When the object is acted upon by varying forces or when the object is moving along a curved path.

How does the velocity of an object change with uniform acceleration?

• Velocity changes exponentially with uniform acceleration.

• Velocity decreases with uniform acceleration.

• Velocity remains constant with uniform acceleration.

• Velocity changes linearly with uniform acceleration.

What is the formula to calculate final velocity with uniform acceleration?

• v = u * a * t

• v = u + a

• v = u + at

• v = u + t