Acceleration and Deceleration (KAM) OALH

Last updated almost 5 years ago
29 questions
Do Now:
1

Describe the motion of an object when a sitance-time grpah line is flat.

1

Describe the motion of an object when a distance-time graph is curving upwards.

1

Give the equation for calculating weight.

1

Define repeatable.

1

Give this number in standard form: 0.000059178

1

Challenge: Explain how to calculate the speed from a distance-time graph if the motion is not uniform.

Key Knowledge LCWC
1

Define acceleration.

1

State the equation that links change in velocity, acceleration and time.

1

State the equation that links acceleration, distance, and velocity.

1

When is acceleration positive?

1

When is acceleration negative?

1

Define acceleration.

1

State the equation that links change in velocity, acceleration and time.

1

State the equation that links acceleration, distance, and velocity.

1

When is acceleration positive?

1

When is acceleration negative?

Recall Quiz
1

Which of the following is true of the object on the right

1

An object which is speeding up has a...

1

What is the symbol for initial velocity?

1

Which of the following is correct? (see the equations on the powerpoint)

1

Application Task – We Do
A car travels from rest to 86 m/s in 9 seconds, what is its acceleration?

1

Application Task – We Do
A car is travelling at a steady speed of 98m/s and it brakes to 76m/s, what is its acceleration if it is moving for 10seconds? *be careful with initial and final*

1

Application Task – We Do
Rearrange a=∆v/t for change in velocity and time.

1

Application Task – We Do
A train is travelling at 50m/s and accelerates to 62m/s. If the acceleration is 3m/s2, how long did the acceleration take?

Plenary
1

A car travels from rest to 72 m/s in 9 seconds, what is its acceleration?

1

A car is travelling at a steady speed of 120m/s and it brakes to 82m/s, what is its acceleration if it is moving for 10seconds?

1

A lizard decelerates from 10 m/s to 2 m/s in 4 seconds. What is the lizard’s average acceleration?

1

A train is travelling at 50m/s and accelerates to 60m/s. If the acceleration is 5m/s2, how long did the acceleration take?

1

A train is travelling at 80m/s and accelerates at 6m/s2 for 2 seconds. How fast is it going at the end of the time?