
Review Sec1 - term 1
Presentation
•
Science
•
7th Grade
•
Practice Problem
•
Hard
Sapta Adiguna
Used 2+ times
FREE Resource
0 Slides • 25 Questions
1
Multiple Choice
What is the most appropriate attire when working in a laboratory?
T-shirt and short
Lab coat, safety goggles, and close-toe shoes
Long flowing dress or skirt
Sandals and flip flops
2
Multiple Choice
When should you wear gloves in the lab?
Only when handling dangerous chemicals
Only when using sharp objects
Always when working in the lab
Gloves are optional
3
Multiple Choice
Before conducting an experiment, it is essential to :
Read the procedure and potential hazard carefully
Check your phone for messages
Wear your lab coat inside out for good luck
work without supervision
4
Multiple Choice
Which of the following is true about eating or drinking in the lab?
It is allowed as long as you are careful not to spill
It is strictly prohibited at all times
It is allowed during non-experimental periods
It is allowed in designated areas of the lab
5
Multiple Choice
When should you begin cleaning up your lab station after an experiment?
After everyone else has finished their experiment
As soon as you are done with your experiment
At the end of the lab session, regardless of your experiment's status
At the disrection of the lab supervisor
6
Multiple Choice
What is the name of this lab equipment
Ring stand
Iron ring
Test tube rack
Test tube
7
Multiple Choice
What is the name of this lab equipment
Crucible tongs
Test tube holder
Spatula
Test tube brushes
8
Multiple Choice
What is the name of this lab equipment
Crucible
Test tube
Glass plate
Evaporating dish
9
Multiple Choice
What is the name of this lab equipment
Beaker
Erlenmeyer
Graduated cylinder
Florence flask
10
Multiple Choice
What is the function of this lab equipment
measurement of a specific volume of liquid with precision
pour substances and solutions in narrow-mouthed test tubes and conical flasks
calibrated to hold a precise volume of liquids at any precise temperature
a handful in delivering a known volume of any substance to other equipment
11
Multiple Choice
A student wants to take a particularly accurate measurement of the volume of the liquid in a measuring cylinder.
Which of the following procedures would make her measurement less accurate
Putting her eyes level with the height of the measurement to be taken
Reading the liquid level from the bottom of the meniscus
Using the largest measuring cylinder she could find
Using a set-square to make sure the cylinder is perfectly vertical
12
Multiple Choice
What is the diameter of a single sphere?
2.2 cm
2.0 cm
2.1 cm
2.3 cm
13
Multiple Choice
A student is timing the rate of cooling of a beaker of water. On a repeat investigation run, the student forgets to zero the stopwatch.
The reading on the stopwatch at the start and end times are shown.
Calculate how long it took the beaker to cool.
11 minutes
11 minutes and 8 seconds
12 minutes
12 minutes and 8 seconds
14
Multiple Choice
Identify the physical quantity that is not scalar
Speed
time
weight
energy
15
Multiple Choice
Identify the physical quantity that is scalar
distance
velocity
weight
displacement
16
Multiple Choice
A person wishes to roast a chicken. The Chicken requires 1 hour and 20 minutes in the oven to be properly cooked.
The oven must be switched on 10 minutes before any food is put in, to pre-heat and reach the correct temperature for cooking
The chicken needs to be ready at 4:30 pm. At what time must the oven be switched on?
2:10 pm
3:10 pm
2:00 pm
3:00 pm
17
Multiple Choice
Three blocks are placed into three measuring cylinders. These are shown in the picture.
Which arrangement shows the blocks in order of increasing volume?
X - Y - Z
Y - X - Z
Z - Y - X
Z - X - Y
18
Multiple Choice
What is the speed of a bowling ball which travels down a 30 m lane in 2.5 seconds?
75 miles per hour
75 meters per second
12 meters per second
12 miles per hour
19
Multiple Choice
Which distance-time graph shows an object moving with constant speed
Y - X - Z
Z - Y - X
Z - X - Y
20
Multiple Select
Which speed-time graph shows an object moving with constant speed
21
Multiple Select
In which section of the graph is the most distance covered?
A
B
C
D
22
Multiple Choice
A BASE jumper, initially at rest, falls from the top of El Capitan in Yosemite National Park. Air resistance is ignored.
Which graph represents their motion as they approach terminal velocity?
23
Multiple Choice
A BASE jumper, initially at rest, falls from the top of El Capitan in Yosemite National Park. Air resistance is NOT ignored.
Which graph represents their motion as they approach terminal velocity?
24
Multiple Choice
A car travels along a clear 10.0 km section of motorway in 6.0 minutes.
It then drives through 3.0 km of roadworks in 3.0 minutes.
Determine the average speed for the journey.
1.00 km/minute
1.67 km/minute
2.67 km/minute
1.44 km/minute
25
Multiple Choice
During a Go Karting race, a car does 8 laps of a 300 m course. It takes 4.0 minutes to complete the race.
What was the average speed of the Go Kart?
75 m/s
10 m/s
1.25 m/s
600 m/s
What is the most appropriate attire when working in a laboratory?
T-shirt and short
Lab coat, safety goggles, and close-toe shoes
Long flowing dress or skirt
Sandals and flip flops
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MULTIPLE CHOICE
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