Science 4.3

A . . . . is a movement from one place to another place.

• motion

• force

• speed

• distance

A . . . . is a pull or a push on an object.

• force

• friction

• gravity

• motion

The . . . . of a motion refers to how fast or slow the object is moving.

• position

• speed

• measuring

• mass

The speed of a cars is 70 km/h if it travels 70 km in hour. The speed of a car is shown by a . . . .

• measuring tape

• speedometer

• ruler

• GPS

A force can be measured using an instrument called . . . .

• table

• unit

• graph

• spring balance

We can represent the motion of an object on a distance-time graph. It tells us how the distance travelled by an object changes with time.

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A spring balance can be used to measured pulling forces. The greater the reading on the spring balance, the smaller the force applied on it.

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Answer explanation

A spring balance can be used to measured pulling forces. The greater the reading on the spring balance, the greater the force applied on it.

The unit of force is . . . .

• newton

• spring balance

• speedometer

• scale

Hazel’s arm cannot be used to measure distance. The most suitable for measuring long distance accurately is . . . .

• speedometer

• scale

• measuring tape

• energy

Material of magnetic forces consists of magnetic and non-magnetic materials. Give 3 examples of material that cannot be attracted by a magnet!

Answer explanation

Three examples of material that cannot be attracted by a magnet such as plastic, wood, rubber, glass, aluminium, copper