Unit Test: Forces

Which of the following can exert more force, a 3 year old child or a 25 year old guy?

• A 25 year old guy

• A 3 year old child

• Both of them are equal

• None of them can exert force

What will happen if the two boys exerted the same strength in pulling the rope?

• The rope will move to the left.

• The rope will move to the right.

• The rope will not move.

• The rope will become shorter.

How much is the total resultant force if Man A kicked the ball to the right with 10N while Man B kicked it with 25N to the left?

• 35 N to the right

• 0 N

• 15 N to the right

• 15 N to the left

If Man A pulled the table to the left using 7N and Man B pulled the same table to the right using 14N, then what would be the resultant force and its direction?

• 7 N going to the left

• 7 N going to the right

• 21 N going to the left

• 21 N going to the right

If Boy A pushed the box to the right using 27 N force and Boy B pushed the same box to the left using 34 N,

then what would be the resultant force and its direction?

• 7 N going to the left

• 7 N going to the right

• 21 N going to the left

• 21 N going to the right

__________ is the force that acts in the opposite direction of the moving object.

• Gravitational force

• Resultant force

• Frictional force

• Magnetic force

Friction produces unnecessary heat and _______.

• shade

• noise

• attraction

• direction

The rougher the two surfaces in contact, the _________ will the friction between them.

• lesser

• greater

• longer

• shorter

_________________ is a single force that has the same effect on the object as all the individual forces are acting together.

• Frictional force

• Gravitational force

• Magnetic force

• Resultant force

What is the use of the arrow in finding the resultant force?

• It shows the height and the length of the force acting on an object.

• It shows the magnitude and the direction of the force acting on an object.

• It shows the weight and the length of the force acting on an object.

• It shows the size and the shape of the force acting on an object.