Force and motion

1) Ahmad designs and builds a toy car and is about to test the speed of the car by pushing it down a ramp. What tools should he use to measure the speed of the toy car?

• a ruler and a scale

• a scale and a stopwatch

• a stopwatch and a ruler

Hitting a nail with a hammer is a

• push

• pull

1) is necessary to move a car compared with a bicycle.

• more force

• less force

• no force

• The same force

) A force that happens when an object rubs another object is called

• gravity force

• friction force

• magnetic force

1) Motion is the process of change in an object's .

• friction

• balanced

• position

1) Balanced forces cancel each other out when acting on an object.

• true

• false

An object will have a change in motion when the forces acting on it are .

• balanced

• unbalanced

• equal

1) Objects can only move in a straight line.

• true

• false

1) A group of students placed four animals on a path. Each animal ran, walked or jumped down the path. After 10 seconds, the students measured the distance traveled by each animal. The results are shown in the bar graph below.

Order the animals from fastest to slowest.

Cat – Turtle- Dog - Frog

• frog- cat- turtle- dog

• turtle - cat - dog - frog.

• dog - cat - frog - turtle

1) Humaid is walking a small dog and a big dog. Suddenly, the dogs pull on opposite directions. Which direction will Humaid be pulled?

• towards the smaller dog

• towards the bigger dog

• in the opposite direction of the dog that applies more force

• towards the dog that applies more force