WorksheetsCENTA SECONDARY AND SR. SECONDARY PHYSICS
Total questions: 17
Worksheet time: 16mins
The Eiffel Tower has a mass of 10,000,000 kg. A 100:1 scale model of the tower made from the same material will have a mass of
1kg
10kg
100kg
1000kg
Three men—A, B, and C—crossed paths walking through woods on a cold night. They decided to light a fire to rest by, and set out to gather some firewood. A came back with 5 logs of wood, B brought 3 logs, but C came back empty-handed. C requested that they let him rest by the fire and promised to pay them some money in the morning. In the morning C paid them $8. How should A and B split the money fairly?
A $7; B $1
A $6; B $2
A $5; B $3
A $4; B $4
Mr. Fiz is returning home at a speed of 2 mph with his dog Ix. He unleashes Ix when they are still 3 miles from his house. Ix happily begins running back and forth between the house and his master with a constant speed of 3 mph. Ix does not waste any time while turning around. By the time Mr. Fiz reaches home, how many miles has Ix run?
3.5 miles
4.0 miles
4.5 miles
3.333... miles
Two marbles roll along two horizontal tracks. One track has a dip and the other has a bump of the same shape. Which marble wins?
(a)
The weight of a closed jar is W while the flies inside it are flying around. What will be the weight of the jar if the flies settle down inside the jar?
less than W
more than W
equals to W
none of the above
Two identical beakers(left: A and Right : B) a hold water at the same height, but one of them has an iron block immersed in it. choose the correct option
weight of A > Weight of B
weight of A< Weight of B
weight of A = Weight of B
None of them
Two identical beakers(left: A and Right : B) hold water at the same height, but one of them has an iron block immersed in it. Choose the correct option.
Weight of A> Weight of B
Weight of A < Weight of B
Weight of A= Weight of B
None of them
Two identical beakers(left: A and Right : B) hold water at the same height, but one of them has an iron block immersed in it. Choose the correct option.
Weight of A> Weight of B
Weight of A < Weight of B
Weight of A= Weight of B
None of them
The diagram shows the first step in an experiment to determine the position of the centre of mass of a thin card.
What is the next step in this experiment?
Find the mid-point of PQ.
Hang the card from point R.
Measure the mass of the card.
Measure the thickness of the card.
A third weight is to be added to bring the system into equilibrium. What is its magnitude and where should it be placed?
1N, 2 m to the left of the pivot
1N, 3 m to the right of the pivot
2N, 1 m to the left of the pivot
2N, 1 m to the right of the pivot
A girl uses paper-clips to balance a toy bird on her finger as shown. What is the effect of the paper-clips?
They help to raise the centre of gravity above her finger.
They help to raise the centre of gravity to her finger.
They help to lower the centre of gravity below her finger.
They do not affect the centre of gravity but increase the weight.
A person carrying a cup of water with floating ice steps into an elevator. If the elevator accelerates upward, the ice will
Float higher
Sink deeper
Stay at the same level
An insect is climbing up a 30 ft. vertical wall. Starting from the bottom it climbs up 3 ft. during the day and slips down 2 ft. at night. In how many days will it reach the top of the wall?
31 days
30 days
29 days
28 days
Electrical Hazard
Which of the following signs are you LEAST likely to see in your school laboratory?
Caution
What is the name of this hazard symbol?
Toxic
Treasure
Irritant
No entry
