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7th grade review

Total questions: 34

Worksheet time: 17mins

Name
Class
Date
1.

Please provide the first and last name of the student, for example, Aiden or Lily.

4 lines
2.

Sophia noticed that when she pushed a book on her desk, it eventually stopped moving. This observation is related to Newton's First Law of Motion, also known as the Law of

a)

Acceleration

b)

Friction

c)

Inertia

d)

Gravity

3.

Kai is running in a straight line. His velocity is his speed in a given _____________________.

a)

force

b)

mass

c)

direction

d)

time

4.

In the picture, what force is acting downward on Ava and Rohan while they are skydiving?

a)

Fluid friction

b)

gravity

c)

applied force

d)

normal force

5.

Mason and Charlotte are skydiving for the first time. Referring to the picture above; what force would they have to take advantage of in order to slow down their descent?

a)

fluid friction/air resistance

b)

gravity

c)

velocity

d)

inertia

6.

Base your answers to the next three questions on the diagram below and on your knowledge of science. The diagram represents Emma pulling a cart with a box on it. The arrow represents the direction in which Emma is moving. Check all the forces acting on the cart force acting on the cart.

a)

friction between the wheels and the road

b)

normal force of the road pushing up on the cart

c)

applied force from Emma pulling the cart

d)

gravity pulling down on the cart

e)

all of the above

7.

Noah is pushing a shopping cart at the grocery store. Identify the force between the wheels of the cart and the ground surface that opposes forward motion of the cart.

a)

friction

b)

acceleration

c)

velocity

d)

normal force

8.

Explain why a book may continue to slide forward if a car suddenly stops moving.

a)

speed

b)

velocity

c)

inertia

d)

acceleration

9.

Abigail and Henry are observing the gravitational force between two objects. The gravitational force between the objects is most affected by their

a)

motion and volume

b)

motion and distance apart

c)

mass and volume

d)

mass and distance apart

10.

Grace and Priya are discussing what keeps planets in orbit around the Sun. What is the primary force responsible for this?

a)

the reflection of sound energy

b)

the flow of electricity in a closed circuit

c)

keeping planets in orbit around the Sun

d)

refracting light energy

11.

Elijah is holding a barbell above his head. The force of gravity pulling down on the barbell is 756 newtons (N). How many newtons of force are exerted by Elijah to hold the barbell up?

a)

0 N

b)

378 N

c)

756 N

d)

1512 N

12.

Maya rides her bicycle north past an old man sitting on a bench. What direction will Maya see the old man moving? Assume that the old man is sitting still.

a)

North

b)

East

c)

The old man will not appear to be moving

d)

South

e)

West

13.

According to Newton, what kinds of objects are affected by gravity? Priya and Aiden are discussing this in their science class.

a)

Only objects inside the earth's atmosphere, like apples.

b)

Only objects with a lot of mass, like human beings.

c)

All objects in the universe.

d)

Only objects that orbit the sun, like planets.

14.

If the net force on a car driven by Abigail is zero, what can you conclude?

a)

The car is not accelerating

b)

The car is not moving

c)

The car is not touching anything

d)

The car is slowing down

15.

According to Newton's first law, if Zoe kicks a soccer ball, it will keep rolling unless:

a)

An unbalanced force acts on it.

b)

It stops.

c)

It's in outer space.

d)

It remains at rest.

16.

Elijah and Mia are pushing a car. What is the net force acting on the car?

a)

A force associated with the Internet

b)

The combined forces acting on a particular object

c)

The same thing as inertia

d)

The same thing as gravity

17.

According to Newton's third law, what happens when Michael pushes against a wall?

a)

The wall pushes back at Michael half as hard as he pushes against it.

b)

The wall pushes back at Michael with the same amount of force.

c)

The wall doesn't resist at all.

d)

The wall pushes back at Michael twice as hard as he pushes against it.

18.

During a science class, Isla observed that a book on her desk remained at rest until she pushed it. What is this an example of? The Law of

a)

friction

b)

mass

c)

inertia

d)

gravity

19.

Kai and Noah are playing with a toy car. What can a force do to the toy car? Click all that apply

a)

stop motion

b)

start a motion

c)

change the direction of the motion

20.

Charlotte and Aiden are playing tug-of-war. With unbalanced forces, the object will move in the direction of the _______ force.

a)

larger

b)

equal

c)

smaller

21.

Ethan and Ava are comparing objects. Which has more inertia?

a)

A postcard

b)

School Bus

22.

Jackson noticed that when he tried to push a stationary car, it was difficult to get it moving. This resistance to any change in its state of motion is known as

a)

Inertia

b)

Friction

c)

Mass

d)

Forces

23.

Henry and Luna are pushing a car. What property of the car determines how much Inertia it has?

a)

Mass

b)

Weight

c)

Velocity

d)

Friction

24.

Kai pushes a shopping cart with an unbalanced force, causing it to...

a)

Explode

b)

Accelerate

c)

Stay at rest

d)

Dance

25.

In a science class, Benjamin is asked: What unit of measurement is used with Mass?

a)

m/s^2

b)

kg

c)

lbs

d)

psi

26.

During a game of tug-of-war, Lily and Priya pull on opposite ends of the rope. Which of Newton's Laws is known as The Law of "Action-Reaction"?

a)

Newton's 1st

b)

Newton's 2nd

c)

Newton's 3rd

27.

What is the reaction force to Maya spiking a volleyball?

a)

The volleyball hitting your opponent in the face

b)

The volleyball scoring you a point

c)

The volleyball pushing back on your hand

d)

The volleyball exploding

28.

When Benjamin writes a note on a piece of paper, what type of friction is primarily involved?

a)

Static

b)

Fluid

c)

Rolling

d)

Sliding

29.

Daniel and Anika are pushing a heavy box across different surfaces. Factors that most affect the amount of friction against the box are

a)

Roughness of surface and velocity

b)

Velocity and mass

c)

Mass and Roughness of surface

d)

Gravity and mass

30.

Benjamin and Oliver are comparing their science project materials. The amount of Matter an object possesses is known as

a)

Weight

b)

Mass

c)

Inertia

d)

Friction

31.

True or False: William's mass is the same on the moon as it is here on Earth

a)

True

b)

False

32.

True or False: Avery's weight would be the same on the moon as it is on Earth

a)

True

b)

False

33.

During a science experiment, Priya and David observed different types of friction. What is the weakest type of friction?

a)

Rolling

b)

Sliding

c)

Static

d)

Fluid

34.

Daniel is conducting an experiment to measure the acceleration of gravity on Earth. What value should he expect to find?

a)

9.8 m/s

b)

8.9 m/s

c)

9.8 kg