Exploring Forces

Which everyday activity demonstrates the application of force?

1. Reading a book
2. Sleeping
3. Opening a door by pushing it
4. Watching television

Which statement about force is correct?

1. Force can only increase speed.
2. Force cannot stop a moving object.
3. Force can change the direction of motion.
4. Force has no effect on objects.

Which force helps a magnet pick up iron nails?

1. Muscular force
2. Frictional force
3. Magnetic force
4. Gravitational force

When two equal forces act in opposite directions, the resultant force is:

1. Maximum
2. Zero
3. Double
4. Half

Which force acts between electrically charged objects?

1. Electrostatic force
2. Frictional force
3. Muscular force
4. Gravitational force

Which force opposes the motion of moving objects?

1. Friction
2. Gravity
3. Magnetic force
4. Electrostatic force

Which of the following helps us walk without slipping?

1. Gravity only
2. Friction
3. Magnetic force
4. Electrostatic force

Which property of an object can be changed by applying a force?

1. Colour only
2. Shape only
3. Motion and shape
4. Temperature only

A football lying on the ground starts moving after being kicked. Which force causes this?

1. Gravitational force
2. Magnetic force
3. Muscular force
4. Electrostatic force

What happens when balanced forces act on an object?

1. The object always starts moving.
2. The object changes direction.
3. There is no change in its state of motion.
4. The object always speeds up.

Which of the following is a non-contact force?

1. Muscular force
2. Frictional force
3. Magnetic force
4. Applied force

Which of the following is a contact force?

1. Magnetic force
2. Electrostatic force
3. Gravitational force
4. Frictional force

Which force always acts towards the center of the Earth?

1. Frictional force
2. Magnetic force
3. Gravitational force
4. Electrostatic force

Which of the following best defines a force?

1. A form of energy
2. A push or a pull acting on an object
3. The weight of an object
4. The speed of an object