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WorksheetsJunior 1 Physics
Total questions: 15
Worksheet time: 8mins
Look at the diagram. Which point does the ball have the maximum gravitational potential energy?
A
C
F
G
The force of gravity acting on an object is also called its_____________.
velocity
speed
weight
mass
A student wants to find out which end is the magnet’s north pole. What could he do to find out?
Put the magnet under a piece of paper, and sprinkle iron filings（撒铁粉） on top.
Put it near to a piece of magnetic material, like a steel paperclip.
Place a compass near it.
The diagram shows the dates of four of the Moon phases observed during June, 2008. On which date did the next New Moon occur?
July 2
July 9
July 10
July 27
A moving car has kinetic energy. If the car moves faster, it will have _______ kinetic energy.
the same
less
no
more
The distance between the Earth and the Sun is around 150,000,000 km. Express this value in scientific notation.
15 x 10 7 km
1.5 x 107 km
15 x 108 km
1.5 x 108 km
Which of the following methods could be used to demagnetise a permanent magnet?
Cool it to a very low temperature.
Put it in a coil of wire and pass current through the wire.
Stroke it in a single direction with a permanent magnet.
Heat it to a high temperature.
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the resultant force?
50N to the left.
350N to the left.
350N to the right.
50N to the right.
If the Earth is in its orbit as shown in the picture. Which season would it be in the Northern Hemisphere?
Summer
Winter
Autumn
Spring
What two measurements are necessary for calculating speed?
Mass and time
Mass and distance
Temperature and mass
Distance and time
Which of the following is an example of a contact force?
Electrostatic force (静电力）
Frictional force
Magnetic force
Gravitational force
A student tries to magnetise a short steel rod. Which of these tests will show that he has been successful?
Both ends of a permanent magnet attract the rod.
One end of a permanent magnet repels the rod.
The rod picks up a small piece of paper.
When freely suspended, the rod points in any direction.
15.6 m2 = ___________ cm2
1560
156000
On a roller coaster, where is maximum kinetic energy?
At the bottom of a big hill.
When going upside.
When going around a corner.
At the top of a big hill.
If your online physics teacher and SimChongYou fell in a vacuum, who would hit the ground first?
Physics teacher
SimChongYou
They would hit at the same time
