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A-Level CAIE Physics 1 4 Scalars And Vectors Question Bank

Practice A-Level CAIE Physics 1 4 Scalars And Vectors questions by syllabus topic with past-paper context, marks, difficulty and question previews on Eduninja.

10 matching questions · Open interactive library

Question 1

1

3 marks

Question 1(c)

1(c)

An object B is on a horizontal surface. Two forces act on B in this horizontal plane. A vector diagram for these forces is shown to scale in Fig. 1.1. A force of 7.5 N towards north and a force of 2.5 N from \(30^{\circ}\) north of east act on B. The mass of B is 750 g .

structured3 marks

Question 1(c)(i)

1(c)(i)

On Fig. 1.1, draw an arrow to show the approximate direction of the resultant of these two forces.

Easystructured1 marks

Answer

arrow drawn up to the left of 7.5 N force approximately \(5^{\circ}\) to \(40^{\circ}\) to west of north

Question 1(c)(iii)

1(c)(iii)

Determine the angle between the direction of the acceleration and the direction of the 7.5 N force. angle =

Mediumstructured2 marks

Answer

\(19^{\circ}\) [use of scale diagram allow \(17^{\circ}\) to \(21^{\circ}\) (a diagram must be seen)]

Question 1

1

The diagram shows a displacement vector. What is the vertical component of this displacement vector? 3.0 km 4.0 km 5.0 km 6.6 km

Easymcq1 marks

Answer

Question 1

1

Which pair includes a vector quantity and a scalar quantity? displacement; acceleration force; kinetic energy power; speed work; potential energy

Easymcq1 marks

Answer

Question 1

1

Which pair of quantities contains one vector and one scalar quantity? displacement; force kinetic energy; power acceleration; momentum velocity; distance

Easymcq1 marks

Answer

Question 1

1

A force of 5.0 N pushes a ball due north and another force of 3.0 N pushes it due east. What is the magnitude of the net force acting on the ball? \(2.8 \mathrm{~N}\) \(4.0 \mathrm{~N}\) \(5.8 \mathrm{~N}\) \(8.0 \mathrm{~N}\)

Easymcq1 marks

Answer

Question 1

1

1 marks

Question 1(a)

1(a)

Table 1.1 lists some physical quantities. Complete the table by placing a tick ( \(\checkmark\) ) next to the scalar quantities.

Easystructured1 marks

Answer

charge and power only ticked B1

Question 1

1

2 marks

Question 1(a)

1(a)

Compare scalar and vector quantities.

Easystructured2 marks

Answer

scalar and vector have magnitude B1 vector has direction (and scalar does not have direction) B1

Question 1

1

2 marks

Question 1(a)

1(a)

The boxes in Fig. 1.1 contain terms on the left-hand side and examples of these terms on the right-hand side. Draw a line between each term on the left and the correct example on the right.

Easystructured2 marks

Answer

any two joined correctly C1 all four joined correctly A1

Question 1

1

5 marks

Question 1(d)

1(d)

Underline all the scalar quantities in the list below.

Easystructured1 marks

Answer

energy and power (both underlined and no others)

Question 1(e)

1(e)

A boat travels across a river in which the water is moving at a speed of \(1.8 \mathrm{~ms}^{-1}\). The velocity vectors for the boat and the river water are shown to scale in Fig. 1.1. In still water the speed of the boat is \(3.0 \mathrm{~ms}^{-1}\). The boat is directed at an angle of \(60^{\circ}\) to the river bank.

structured4 marks

Question 1(e)(i)

1(e)(i)

On Fig. 1.1, draw a vector triangle or a scale diagram to show the resultant velocity of the boat.

Mediumstructured2 marks

Answer

vector triangle of correct orientation three arrows for the velocities in the correct directions

Question 1(e)(ii)

1(e)(ii)

Determine the magnitude of the resultant velocity of the boat. resultant velocity = \(\mathrm{ms}^{-1}\)

Mediumstructured2 marks

Answer

length measured from scale diagram \(5.2 \pm 0.2 \mathrm{~cm}\) or components of boat speed determined parallel and perpendicular to river flow velocity \(=2.6 \mathrm{~m} \mathrm{~s}^{-1}\left(\right.\) allow \(\left.\pm 0.1 \mathrm{~m} \mathrm{~s}^{-1}\right)\)

Question 1

1

What is a scalar quantity? a quantity that can be represented as two perpendicular components a quantity that does not require a unit a quantity without a direction a quantity without a magnitude

Easymcq1 marks

Answer