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WorksheetsGrade 7 Revision
Total questions: 15
Worksheet time: 10mins
In a swimming race, Miho swam the first 50m in 42s. She swam the second 50m in 40s. What was Miho's average speed during the race?
A- 0.82 m/s
B-1.19 m/s
C-1.22 m/s
D-1.25 m/s
which of the following is an example of acceleration?
A- A boat sits on a boat trailer
B- A car moves in a straight line at 60k m/hr
C- A plane moves in air at a steady speed of 850 km/hr
D- A bus moves on a straight road and then makes a right turn
A box of books is on the floor. The following picture shows a push and a pull acting on the box.
What is the net force toward the right on the box?
A-0 N
B-50 N
C-100 N
D-2.500 N
What is gravity?
A. the force that pushes all objects toward Earth
B. the force that pulls all objects toward one another
C. a magnetic force that is strongest at Earth's poles
D. a stream of charged particles from the sun to Earth
A fluid exerts 500 N of force over an area that measures 0.5 m2. What is the pressure by exerted the fluid?
A. 250 Pa
B. 750 Pa
C 1,000 Pa
D. 2,000 Pa
1. Three objects are placed in water, Object A is less dense than the water. Object B is denser than the water, Object C and the water have the same density. Which object(s) will sink in the water?
A. Object A only
B. Object B only
C. Objects A and C only
D. Objects B and C only
. A lightbulb uses 2,000 J of energy in 1 min and
20 s. What is the power of the lightbulb?
A. 25 W
B. 50 w
C. 60 w
D.100 W
Which of the following best defines energy?
A. the ability to do work
B. the resistance to motion
C. how fast an object moves
D. amount of force in a given time
Which of the following has kinetic energy?
A. a book sitting on a shelf
B. A hat and gloves on a table
C. a child kicking a soccer ball
D. cars parked in a parking lot
What term describes the energy that is stored
due to the height of an object from the ground?
A. kinetic energy
B. chemical energy
C. mechanical energy
D. gravitational potential energy
The diagram below shows a lever. Which type of lever is shown in the diagram, and which label points to the fulcrum?
A. first class, label A
B. first class, label B
C. third class, label B
D. second class, label C
the (a) of an object describe the speed and the direction
the change in the velocity of an object is called (a)
the stored energy of an object due to its position, condition and chemical composition is the (a)
(a) is a device that helps people do work by changing the way works done
