Resultant forces

In this lesson we will look at calculating resultant force, where vectors occur in similar and different directions. We will also look at how resultant forces affect the motion of an object.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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.Identify the correct units for weight

Kilogram (kg) Joules (J) Newtons (N) Ampere (A)

1/7

Q2.Identify the correct definition of weight

The effect of gravity on mass The amount of matter in an object The amount of gravity in an object The effect of mass on gravity

2/7

Q3.Recall the equation that links gravitational field strength, mass and weight

m = W x g m = w x g W = m x g w = m x g g = W x m

3/7

Q4.Identify the 3 vectors below

Select three (3) boxes

Speed Velocity Distance Energy Displacement Weight Time

4/7

Q5.Identify 2 correct statements

Select two (2) boxes

The bigger the object, the smaller the gravitational field Weight is directly proportional to mass The bigger the object, the bigger the gravitational field Weight is inversely proportional to mass The smaller the object, the bigger the gravitational field

5/7

Q6.When weight acts through a single point of an object, we call this what?

Centre of weight Centre of gravity Point of weight Centre of mass Point of mass

6/7

Q7.Calculate the weight on an object that has a mass of 10 kg, assuming 9.8 N/kg

98 N 0.98 kg 98 kg 0.98 N 980 N

7/7

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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.Identify the correct units for weight

Kilogram (kg) Joules (J) Newtons (N) Ampere (A)

1/7

Q2.Identify the correct definition of weight

The effect of gravity on mass The amount of matter in an object The amount of gravity in an object The effect of mass on gravity

2/7

Q3.Recall the equation that links gravitational field strength, mass and weight

m = W x g m = w x g W = m x g w = m x g g = W x m

3/7

Q4.Identify the 3 vectors below

Select three (3) boxes

Speed Velocity Distance Energy Displacement Weight Time

4/7

Q5.Identify 2 correct statements

Select two (2) boxes

5/7

Q6.When weight acts through a single point of an object, we call this what?

Centre of weight Centre of gravity Point of weight Centre of mass Point of mass

6/7

Q7.Calculate the weight on an object that has a mass of 10 kg, assuming 9.8 N/kg

98 N 0.98 kg 98 kg 0.98 N 980 N

7/7

Video

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Worksheet

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PPTX

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Resultant Forces

This quiz will assess you on lesson 3 of the forces topic focusing on resultant forces. They may also be some questions on previous content.

Q1.A single force that has the same effect as all the original forces acting together is called what?

Final force Resultant force End force Vector force

1/8

Q2.Identify ALL 3 vector quantities below

Select three (3) boxes

Velocity Acceleration Temperature Mass Force Energy

2/8

Q3.Calculate the the sum of the vectors shown

30 m, E 90 m 90 m, E 30 m 60 m, E

3/8

Q4.Calculate the easterly resultant force

30 N 20 N 90 N 40 N

4/8

Q5.Recall the equation that links gravitational field strength, mass, and weight

m = W x g W = 2 x g x m W = m x g W = g / m

5/8

Q6.Which statement could describe an object's motion when the resultant force is 0 N?

Select one (1) boxes

Deceleration Constant velocity Moving slow

6/8

Q7.Which statement could best describe an object's motion when the resultant force is unbalanced?

Select one (1) boxes

Accelerating Constant velocity Remaining stationary

7/8

Q8.Which statement best describes 'displacement'

The distance an object has travelled Speed with direction The distance and direction from where you started to where you finished A quantity that has magnitude only

8/8

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Resultant Forces

This quiz will assess you on lesson 3 of the forces topic focusing on resultant forces. They may also be some questions on previous content.

Q1.A single force that has the same effect as all the original forces acting together is called what?

Final force Resultant force End force Vector force

1/8

Q2.Identify ALL 3 vector quantities below

Select three (3) boxes

Velocity Acceleration Temperature Mass Force Energy

2/8

Q3.Calculate the the sum of the vectors shown

30 m, E 90 m 90 m, E 30 m 60 m, E

3/8

Q4.Calculate the easterly resultant force

30 N 20 N 90 N 40 N

4/8

Q5.Recall the equation that links gravitational field strength, mass, and weight

m = W x g W = 2 x g x m W = m x g W = g / m

5/8

Q6.Which statement could describe an object's motion when the resultant force is 0 N?

Select one (1) boxes

Deceleration Constant velocity Moving slow

6/8

Q7.Which statement could best describe an object's motion when the resultant force is unbalanced?

Select one (1) boxes

Accelerating Constant velocity Remaining stationary

7/8

Q8.Which statement best describes 'displacement'

The distance an object has travelled Speed with direction The distance and direction from where you started to where you finished A quantity that has magnitude only

8/8

Lesson summary: Resultant forces

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Resultant forces

Intro quiz - Recap from previous lesson

Intro quiz - Recap from previous lesson

Video

Worksheet

Resultant Forces

Resultant Forces

Lesson summary: Resultant forces

It looks like you have not completed one of the quizzes.

Time to move!

The next lesson in: Forces (FT) is: Forces and work

Browse Oak's lessons:

The next lesson in:
Forces (FT)
is:
Forces and work