Chapter 6 Grade 5

Forces always act in a pair.

• True

• False

Having less friction between surfaces results in slower motion.

• True

• False

A moving object always experiences unbalanced forces acting on it.

• True

• False

Objects at rest have no force acting on them.

• True

• False

In a force diagram, the size of force is indicated by the length of the arrows drawn.

• True

• False

Santi is shopping for a pair of shoes. She observes that the soles of the shoes are designed as shown in the picture.

Choose the reason for the design of the soles.

• To increase the gravity acting on the shoes.

• To make the shoes havier.

• To prevent people from slipping while walking.

… forces are two opposing forces with unequal sizes.

• Balanced

• Unbalanced

• Gravity

• Normal

In a force diagram, … represent the forces acting on an object.

• Lines

• Arrows

• Dots

• Stripes

Unbalanced forces can put an object at test into ….

• Action

• Stationary

• Freeze

• Balanced

… is the force that pulls objects towards the centre of the Earth.

• Friction

• Gravity

• Normal

• Upthrust