WorksheetsModule 5 Revision
Total questions: 17
Worksheet time: 11mins
What is the name of the force that keeps an object floating?
Weight
Thrust force
Buoyant force
Normal force
The buoyant force acts to which direction?
Upwards
Downwards
Sideways
Rotation
Which principle explains that buoyancy force of a floating object is the same as the weight of water displaced?
Archimedes' Principle
Pascals' Principle
Ohm's Law
Bernoulli's Principle
If an object is floating, the buoyant force is _______ the weight of the object
greater than
smaller than
the same as
If an object is sinking, the buoyant force is _______ the weight of the object
greater than
smaller than
the same as
If an object is moving upwards to the surface of the water, the buoyant force is _______ the weight of the object
greater than
smaller than
the same as
What is the unit of weight?
Kilogram
Newton
Pascal
Ampere
If a 5 Newton object is floating, what is the buoyant force?
4 Newton
5 Newton
6 Newton
7 Newton
30 mm bar
40 mm bar
110 mm bar
DC motor, single shaft
Which of the following is not the characteristic of a robot?
Programmable
Autonomous or semi-autonomous
Interact with the surrounding with sensors or actuators
Cannot be prgrammed
Read the Arduino code below:
void green () {
digitalWrite (red, LOW);
digitalWrite (green, HIGH);
digitalWrite (yellow, LOW);
delay (5000);
What will happen when you run this code?
The red LED will be turned on
The green LED will be turned on
The yellow LED will be turned on
All LEDs will be turned on
delay (10000);
What is the time this code represents?
10000 seconds
10 seconds
100 seconds
1000 seconds
LED
Arduino UNO
Resistor
Jumper wires
Breadboard
digitalWrite (red,HIGH);
This code means that ______________
The red LED will be turned off
The red LED will be turned on
The red LED will be blinking
digitalWrite (red,LOW);
This code means that ______________
The red LED will be turned off
The red LED will be turned on
The red LED will be blinking
pinMode (red, OUTPUT);
What does this line means?
The red LED is an input device
The red LED is an output device
The red LED is a sensor
pinMode (red, OUTPUT);
In which function will you write this line?
void loop ()
void green()
void setup()
