Form 4 Term 1 Physics

Question 1

Forces are measured in?

Answer 1

Newton’s

Question 2

Mass is measured in ?

Answer 2

Kilograms

Question 3

When two forces are pulling in the opposite direction with the same force they are

Answer 3

In equilibrium

Question 4

When a car is travelling a constant speed what are the forces acting in it doing ?

Answer 4

Acting in equilibrium

Question 5

What is another word for speed?

Answer 5

Velocity

Question 6

Name three forces that oppose motion

Answer 6

Friction

Drag

Air resistance

Question 7

Name three types of forces

Answer 7

Push

Pull

Twist

Question 8

If forces acting on an object are at equilibrium what is the effect ?

Answer 8

NO CHANGE IN SHAPE DIRECTION OR VELOCITY/SPEED

Question 9

What is a force diagram

Answer 9

Shows the forces which are acting on an object

Larger the arrow means larger the force

Question 10

What is the RESULTANT FORCE on an object ?

Answer 10

Calculate by subtracting the opposing forces in each direction then add the total force

Question 11

What is mass ?

Answer 11

The amount of matter in an object measured in KGS

Question 12

What is weight?

Answer 12

The force of gravity acting on a mass

Measured in Newton’s (because gravity is a force)

Question 13

What is gravity?

Answer 13

A fundamental force of attrAction that objects of mass have for each other

Question 14

If my mass is 56kgs how many Newton’s is it on earth?

And On the moon?

Answer 14

560 Newton’s on earth (ten times weight)

90 Newtons on MOON