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WorksheetsQ3 SUMMATIVE NO.1
Total questions: 20
Worksheet time: 15mins
It is defined as a push or pull that starts, stops, or changes the direction of a moving object. 1. It is defined as a push or pull that starts, stops, or changes the direction of a moving object.
A. Motion
B. Force
C. Energy
It is a force that opposes motion between two surfaces sticking or touching together.
A. Gravity
B. Electrical
C. Friction
Which has the greatest frictional force among these surfaces?
A. Polished floor
B. Tiled floor
C. Sandy floor
Friction is a force that opposes motion. It acts in the direction of a moving object.
A. same
B. opposite
C. upward
Which of the following statements best describes friction?
A. It is a force that occurs when surfaces touch each other.
B. It is a force that occurs in smooth surfaces.
C. It is a force that occurs between solids and liquids.
When an object rolls over a surface is produced.
A. Fluid friction
B. Rolling friction
C. Sliding friction
Which of the following statement is true about rolling friction?
A. It is produced when an object is at rest.
B. It is produced when an object is moving in water.
C. It is produced when an object is rolled in a surface.
Which is an example of an object that can produce rolling friction when rolls over a surface?
A. Ball
B. Cabinet
C. Shoe box
Riding a bicycle and using of wheelbarrow (kariton) are examples of _________.
A. Fluid friction
B. Rolling friction
C. Sliding friction
Which of the following shows an example of rolling friction?
A. A kite flying.
B. A paper boat floating.
C. A soccer ball rolling on the ground.
What is sliding friction?
It occurs between two surfaces that come in contact with each other.
It occurs between moving objects and a liquid or between an object moving in the air.
What type of friction occurs when there is more force needed to travel an object in a surface than rolling Friction?
Static Friction
Sliding Friction
The following statements are examples of sliding friction EXCEPT ONE. Which is it?
A block being slid across the floor
A glass being pushed across the table
When a train goes around
Which type of friction opposes the sliding of objects over a surface?
Rolling Friction
Sliding Friction
Mucus produced by snails, help them move along the ground. How does the mucus help snails move?
Mucus makes the snail lighter.
Mucus reduces friction.
Which of the following statements does NOT tell about the effects of gravitational force on objects?
Gravitational force pushes the objects upward.
The more distant the body from the earth, the lesser is the gravitational force of attraction.
Why is it difficult for us to go up in a mountain than go down?
We are moving towards gravity.
We are moving against gravity.
Which of these will have the strongest gravitational pull on Earth?
a half sack of rice
an elephant
Without air resistance, all objects fall at the same rate.
True
False
The gravity between two objects increases as the distance between them ___.
decreases
increases
