Free Printable Physics Yr7

Worksheets

Physics Yr7

Total questions: 27

Worksheet time: 21mins

Name

Class

Date

Gravity

A force of attraction between objects that is due to their mass

Object being forced down to the center of Earth

An object being pushed away from the center of Earth

Keeps flat footed on the earth

What happens when two forces act in the same direction?

They cancel each other out.

The stronger one prevails.

Their strengths are added.

Their sum divided by two is the total force.

The greater the mass of an object,

the easier the object starts moving.

the greater its inertia.

the more balanced it is.

the more space it takes up.

The force of gravity on a person or object on the surface of a planet is called

mass.

weight.

terminal velocity

free fall.

The force that one surface exerts on another when the two rub against each other is called

a. c.

b.. d. .

friction.

inertia.

acceleration

gravity

Forces can be added together only if they are

acting on the same object

unaffected by gravity

balanced forces

substantial

The momentum of an object is in the same direction as its

force.

velocity.

acceleration.

inertia.

The overall force on an object after all the forces are added together is called the

balanced force

unbalanced force

net force

centripetal force

The force of gravity between you and Earth is greater than the force of gravity between you and a car because Earth has more ____________________ than the car.

mass

density

force

friciton

10.

Compare the acceleration of the 1-kg object with that of the 2-kg object.

1kg object has more acceleration because it has less mass

1kg object has less acceleration because it has less mass

2kg object has more acceleration because it has more mass

2kg object has less inertia because it has more mass

11.

Define the term inertia.

the amount of matter in an object

the amount of space an object takes up

the tendency of an object to resist a change in motion, determined by mass

The force that one surface exerts on another when the two rub against each other

12.

Magnetic field lines are closet together at the __________.

poles

lines

13.

Earth's magnetic poles are in the same place as the geographic poles.

True

False

14.

Magnets can interact without touching.

True

False

15.

The motion of liquid _______ in the Earth's core creates a magnetic field.

Iron

Magnesium

16.

A compass behaves as it does because each needle acts as a(n) ___________.

Magnet

Guide

17.

A(n) __________ is a device that has a magnetized needle that can spin freely.

Compass

Magnetic Field

18.

WHAT ARE THE 3 MAIN PARTS OF A LEVER?

FOOT, EFFORT, REPORT

FULCRUM, STRUCTURE, EFFORT

FULCRUM, EFFORT, LOAD

19.

3. Which type of lever is this?

First Class Lever

Second Class Lever

Third Class Lever

20.

For a lever to be a first class lever the fulcrum needs to be ..

between the load and the effort

on one side and the load and effort on the other side

on the same side as the load arm.

21.

6. What kind of lever is this?

First Class Lever

Second Class Lever

Third Class Lever

22.

Levers make work ________.

Harder

Easier

Alright

23.

This baseball pitcher is demonstrating which type of lever at the shoulder?

1st class

2nd class

3rd class

4th class

24.

In second class lever, the load is between the fulcrum and _______.

Load

Effort

Stone

25.

1st and 2nd class levers are ____ while 3rd class levers are _____

Force multipliers, speed multipliers

Speed multipliers,force multipliers

Force multipliers, force multipliers

Speed multipliers, speed multipliers

26.

A see saw is an example of a:

1st class lever

2nd class lever

3rd class lever

27.

A wheelbarrow is an example of a: