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Which of the following statements about forces are correct?
I. A force is a push or a pull.
II. We cannot see a force but we can feel it.
III. A force can change the direction of a moving object.
IV. A force can slow down or stop a moving object.
Which one of the following forces can act at a distance?
I. Gravitational force
II. Magnetic force
III. Frictional force
IV. Muscular force
A moving ball on the floor will eventually come to a stop because of
III. Magnetic force
Which of the following forces causes an object to have weight?
Which of the following statements are true about the force of friction?
I. Friction is produced when two objects or surfaces touch or rub against each other.
II. Friction can produce heat.
III. Friction causes our shoes to wear away faster.
IV. There is more friction on a smooth surface than on a rough surface.
Which of the following statements are true about magnetic force?
I. Magnetic forces are caused by pushing and pulling actions of two objects.
II. A magnet can attract objects made of iron or steel.
III. A magnet can attract objects made of metals only.
IV. The force of a magnet is the strongest at its two poles.
Why does a piece of eraser get smaller as it is being used after some time?
When a bus running at top speed stops suddenly, the passengers are thrown forward because of
Which of the following statements are true about weight?
I. Weight is a force.
II. Weight is the mass of an object.
III. Weight is the force of gravity acting on an object.
IV. Weight is different at different places.
The picture shows that an object is hanging from a string. Which one of the following statements is true about the picture?
Which of the following is TRUE?
Suppose the jeepney you are riding suddenly made a turn around a corner. In what direction would your body move?
Why does an inflated balloon burst when allowed to rise in the sky? Because at that height___________.
In equilibrium, an object ___________________
Object at rest may have
A constant force is needed to keep a car moving along a horizontal surface along a road with uniform velocity. This means that _________________
Which of the following conditions is the net force zero?