9A Term 1 - Retake Revision

9A Physics Retakes

​By Ms. Alaa Mattar

​Term 1 - Revision

Multiple Choice

Which formulae is equivalent to the kinetic energy equation?

$$E\ =\ \frac{1}{2}\ m\ v^2$$

• $$m\ =\ \frac{2E}{v^2}$$

• $$m\ =\ \frac{1}{2}\ E\ v^2$$

• $$m\ =\frac{v^2}{2E}$$

• $$m\ =\ 2\ E\ v^2$$

Multiple Choice

What is the number of significant figures in 0.0004020?

• 4

• 8

• 2

• 7

Multiple Choice

A car starts from rest and goes down a hill with constant acceleration of 5 $$\frac{m}{s^2}$$ .

After 5s the car reaches the bottom of the hill. What is the car's final speed?

• 25 m/s

• 10 m/s

• 50 m/s

• 1 m/s

Multiple Choice

A stone is thrown upwards with initial velocity of 20 m/s. What is the maximum height the stone will reach?

• 9 m

• 20.4 m

• 62.3 m

• 16.7 m

Multiple Choice

The football player kicked the ball vertically upwards. What is the direction of the ball's velocity and acceleration while going up in the air?

9A Physics Retakes

​By Ms. Alaa Mattar

​Term 1 - Revision

Multiple Choice

The position time graph of four different objects is shown. If the positive direction if forward, the which object is moving backwards at constant velocity?

Multiple Choice

The motion diagram shows the motion of four buses moving along the x-axis. Which buses have positive acceleration?

• A

• B

Multiple Choice

Alya used the graduated cylinder to measure the volume of an unknown liquid in the physics lab, the volume she measured was 46.0 mL. Then the teacher asked her to mix it with 1.20 L of water, what is the volume of the mixture in (L)?

• 2.3 L

• 1.25 L

• 6.9 L

• 45 L

Multiple Choice

According to the given equation below, what relationship exist between the variables F and V? $$F\ =\ \frac{mv^2}{R}$$

• Quadratic Relationship

• Linear Relationship

• Inverse Relationship

• Cannot be determined.

Multiple Choice

A car slows down in a constant rate of 10 $$\frac{m}{s^2}$$ . The car's velocity is 50 m/s. How many meters will it travel before it completely stops?

• 60 m

• 100 m

• 125 m

Multiple Choice

The velocity -time graph represents the motion of 5 runners in a free marathon, which one of the runners changed their running direction during the marathon?

• Runner A

• Runner B

• Runner C

• Runner D

Multiple Choice

A truck is at position of x = 125 m and moves toward the origin x = 0, as shown in the motion diagram, what is the velocity of the truck in the given time interval?

• - 60 m/s

• 60 m/s

• - 25 m/s

• 25 m/s

Multiple Choice

A worker in steel factory needs to write down the temperature of a steel rod using SI unit, which one of the following units should he use?

• Celsius

• Kelvin

• Fahrenheit

• Rankie

Multiple Choice

Hanan drops three balls with different masses from the same height. Which ball has the greatest acceleration? (Ignore air resistance)

• The red ball

• The blue ball

• The yellow ball

• They all have the same acceleration.

Multiple Choice

A car in a drag race started from rest and accelerated constantly to a velocity of 50 m/s when it reached the end of a 500 m road. What was the car's average acceleration?

• 2.5 $$\frac{m}{s^2}$$

• 9 $$\frac{m}{s^2}$$

9A Physics Retakes

​By Ms. Alaa Mattar

​Term 1 - Revision

Multiple Choice

Farah is learning how to ride a bike. Her father pushes her with constant acceleration for 4 s, and then Farah continues at 6 m/s for another 5 s before slowing down until she completely stopped after 3s.

What is Farah's displacement in the first 9s?

• 30 m

• 42 m

• 10 m

Multiple Choice

Below is a data table produced by four groups who are measuring a mass of paper clip which had a known mass of 1.04 kg, which group got a properly accurate and precise measurement of the mass of the paper clip?

• Group 1

• Group 2

• Group 3

• Group 4

Multiple Choice

The position time graph shows a cyclist's location in a 60 s time interval. What is the cyclist's displacement from starting position after 40 s?

• 60 m

• 200 m

• 900 m

• 400 m

Plenary

Open Ended

Any questions?