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applied force
balanced force
gravity
contact force
unbalanced forces
100

If forces are balanced, what is the net force

a) zero

b) greater than zero

C)friction

d) the sum of the forces

A) zero

100

Which of the following is true when forces on an object are balanced? 

  • A) The object speeds up.
  • B) The object's motion does not change. 
  • C) The object changes direction.
  • D) The object stops moving.

.

  • B) The object's motion does not change. 
100

Which force pulls any two objects with mass together, such as the Earth holding us down?

  • A) Gravity
  • B) Friction
  • C) Magnetism
  • D) Tension 

C) Gravity

100


Which of the following best describes a contact force
  • A. A magnet pulling a paperclip.
  • B. Gravity pulling a ball down.
  • C. A person pushing a swing. 
  • D. A balloon sticking to a wall. 

C. A person pushing a swing.

100

Which of these is an example of a contact force?

A. A magnet pulling a nail
B. A person pushing a door
C. Gravity pulling a ball down
D. A leaf falling from a tree

B. A person pushing a door

200

What type of force is applied to an object by a person or another object, such as pushing a box?

  • A) Gravity
  • B) Applied Force
  • C) Friction
  • D) Magnetic Force

B} Applied force

200

Two students push a box in opposite directions with the same strength. What happens to the box? 

  • A) It moves to the right.
  • B) It moves to the left.
  • C) It does not move. 
  • D) It speeds up. 
  • C) It does not move. 
200

What is gravity?

  • A) A force
  • B) Energy
  • C)A push
  • D)A type of light


A force

200

What is the force that opposes motion between two surfaces that are touching

a) friction

b) gravity

c) magnetism

d) pressure

a} Friction

200

Jamie pushes a book off a table. The push is a contact force because...

  • A. The book was on a flat surface.
  • B. Jamie used energy.
  • C. Jamie had to touch the book to move it.
  • D. The book fell to the floor.
  • C. Jamie had to touch the book to move it.
300

Which of the following is an example of an applied force?

  • A) A magnet sticking to a fridge
  • B) A book sitting on a table
  • C) Kicking a soccer ball
  • D) A leaf falling from a tree

C} Kicking a soccer ball

300

What happens to an object if the forces acting on it are balanced? 

  • A) It speeds up.
  • B) It slows down.
  • C) It stays at rest or continues moving at the same speed and direction. 
  • D) It changes direction.
  • C) It stays at rest or continues moving at the same speed and direction.
300

Why do you weigh less on the Moon than on Earth?

  • A) The Moon has weaker gravity than Earth
  • b) You would float away.
  • c) You are closer to the Sun. 

A) The Moon has weaker gravity than Earth

300

What is the force that pulls a boat back as it moves through water?

 A. Gravity

B. Water Resistance

 C. Magnetism

B. Water Resistance

300

An unbalanced force always causes a change in:

A. Color 

B. Motion 

C. Size

B. Motion

400

When you pull a door handle to open it, you are applying a force to change the door's:

  • A) Mass
  • B) Weight
  • C) State of matter
  • D) Motion

D} Motion


400

When forces on an object are balanced, the total net force is?

  • A. Greater than zero.
  • B. Less than zero.
  • C. Zero.
  • D. Constantly changing. 
  • C. Zero.
400

Which two factors determine the strength of the gravitational force between two objects

  • A. Mass and distance 
  • B. Size and speed 
  • C. Density and mass 
  • D. Shape and temperature

A. Mass and distance

400

Which force is at work when you squeeze a sponge? 

A Compression

 B. Tension

 C. Gravity

a) Compression

400

An object moving at a constant speed in a straight line has:

A. Balanced forces

B. Unbalanced forces 

C. No gravity


A. Balanced forces

500


What is a push or pull exerted on an object by a person or another object?
  • A. Gravity
  • B. Friction
  • C. Applied Force
  • D. Magnetism


C}Applied Force

500

Which of the following is an example of balanced forces? 

  • A. A soccer ball being kicked.
  • B. A car speeding up.
  • C. A book resting on a table.
  • D. A person jumping.
  • C. A book resting on a table.
500

What does gravity do to objects?

  • Pushes them away from each other
  • Pulls them toward each other
  • Makes them change color
  • Makes them float
  • Pulls them toward each other
500

f you want a toy car to go faster, you should:

A. Increase friction,

 B. Decrease friction, 

C. Add more weight

 B. Decrease friction,

500

 Which is an example of an unbalanced force?

A. A book on a shelf 

B. A car turning a corner 

C. A person standing st 

B. A car turning a corner