# Collision theory

In this lesson, students will look at the 5 factors that affect rate of reaction. Students will also learn what collision theory is and what is activation energy. At the end of the lesson, students are expected to be able to explain how reactions occur using collision theory.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which of the following are signs that a chemical reaction has taken place? Tick THREE boxes.

Select three (3) boxes

1/6

Q2.How can we calculate the rate of reaction from a line graph?

2/6

Q3.Copper reacts with Hydrochloric Acid to form Copper Chloride and Hydrogen gas. What are the products formed? Tick TWO boxes.

Select two (2) boxes

3/6

Q4.In a graph where time is on the x-axis and volume of gas collected is on the y-axis, the slope of the curve is constantly changing because...

4/6

Q5.Higher tier only: In order to determine the rate of reaction at a specific point, we must draw a _________________ on the curve at that point.

5/6

Q6.Calculate the rate of reaction when the initial mass of reactants is 43 g and the final mass of products is 38.9 g after 30 seconds.

6/6

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which of the following are signs that a chemical reaction has taken place? Tick THREE boxes.

Select three (3) boxes

1/6

Q2.How can we calculate the rate of reaction from a line graph?

2/6

Q3.Copper reacts with Hydrochloric Acid to form Copper Chloride and Hydrogen gas. What are the products formed? Tick TWO boxes.

Select two (2) boxes

3/6

Q4.In a graph where time is on the x-axis and volume of gas collected is on the y-axis, the slope of the curve is constantly changing because...

4/6

Q5.Higher tier only: In order to determine the rate of reaction at a specific point, we must draw a _________________ on the curve at that point.

5/6

Q6.Calculate the rate of reaction when the initial mass of reactants is 43 g and the final mass of products is 38.9 g after 30 seconds.

6/6

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Collision Theory

Please complete this exit quiz. This quiz will test your understanding of Collision Theory, as well as topics covered in previous topics.

Q1.Which of the following is the definition for rate of reaction?

1/6

Q2.What is 'activation energy'?

2/6

Q3.Which of the following factors affect rate of reaction?

Select four (4) boxes

3/6

Q4.For a given mass of solid, powders or smaller lumps have ______________________________ than larger lumps which increases the rate of reaction when used as reacting particles collide more frequently.

4/6

Q5.The higher the pressure of reacting gases, the rate of reaction...

5/6

Q6.A student investigated the rate of reaction between copper and hydrochloric acid. The student collected 7.5 cm³ of gas produced after 15 seconds. Calculate the mean rate of reaction.

6/6

Quiz:

# Collision Theory

Please complete this exit quiz. This quiz will test your understanding of Collision Theory, as well as topics covered in previous topics.

Q1.Which of the following is the definition for rate of reaction?

1/6

Q2.What is 'activation energy'?

2/6

Q3.Which of the following factors affect rate of reaction?

Select four (4) boxes

3/6

Q4.For a given mass of solid, powders or smaller lumps have ______________________________ than larger lumps which increases the rate of reaction when used as reacting particles collide more frequently.

4/6

Q5.The higher the pressure of reacting gases, the rate of reaction...

5/6

Q6.A student investigated the rate of reaction between copper and hydrochloric acid. The student collected 7.5 cm³ of gas produced after 15 seconds. Calculate the mean rate of reaction.

6/6

# Lesson summary: Collision theory

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Jog

On the spot:
Chair yoga