Describe the motion of an object when a sitance-time grpah line is flat.
Question 2
2.
Describe the motion of an object when a distance-time graph is curving upwards.
Question 3
3.
Give the equation for calculating weight.
Question 4
4.
Define repeatable.
Question 5
5.
Give this number in standard form: 0.000059178
Question 6
6.
Challenge: Explain how to calculate the speed from a distance-time graph if the motion is not uniform.
Key Knowledge LCWC
Question 7
7.
Define acceleration.
Question 8
8.
State the equation that links change in velocity, acceleration and time.
Question 9
9.
State the equation that links acceleration, distance, and velocity.
Question 10
10.
When is acceleration positive?
Question 11
11.
When is acceleration negative?
Question 12
12.
Define acceleration.
Question 13
13.
State the equation that links change in velocity, acceleration and time.
Question 14
14.
State the equation that links acceleration, distance, and velocity.
Question 15
15.
When is acceleration positive?
Question 16
16.
When is acceleration negative?
Recall Quiz
Question 17
17.
Which of the following is true of the object on the right
Question 18
18.
An object which is speeding up has a...
Question 19
19.
What is the symbol for initial velocity?
Question 20
20.
Which of the following is correct? (see the equations on the powerpoint)
Question 21
21.
Application Task – We Do
A car travels from rest to 86 m/s in 9 seconds, what is its acceleration?
Question 22
22.
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*
Question 23
23.
Application Task – We Do
Rearrange a=∆v/t for change in velocity and time.
Question 24
24.
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
Question 25
25.
A car travels from rest to 72 m/s in 9 seconds, what is its acceleration?
Question 26
26.
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?
Question 27
27.
A lizard decelerates from 10 m/s to 2 m/s in 4 seconds. What is the lizard’s average acceleration?
Question 28
28.
A train is travelling at 50m/s and accelerates to 60m/s. If the acceleration is 5m/s2, how long did the acceleration take?
Question 29
29.
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?