Science
1. What is a force?
a) A measure of distance
b) A push or a pull
c) A way to measure speed
A push or a pull
Which unit is used to measure force?
a) Joules
b) Meters
c) Newtons
Newtons
What force opposes motion and acts between two objects that are touching?
a) Gravity
b) Friction
c) Air resistance
Friction
Which of Newton's laws states that an object at rest stays at rest unless acted upon by an unbalanced force?
a) First law of motion
b) Second law of motion
c) Third law of motion
First law of motion
What does Newton’s third law of motion state?
a) Force equals mass times acceleration
b) Objects at rest stay at rest unless acted upon
c) For every action, there is an equal and opposite reaction
For every action, there is an equal and opposite reaction
What causes motion?
a) reference points
b) forces
c) only gravity
forces
When object is changing position it is called ______.
a) Movement
b) Motion
c) Speed
Motion
Which type of force(s) will cause a change in an object's motion?
a) equal forces
b) balanced forces
c) unbalanced forces
unbalanced forces
What are EQUAL forces acting on an object in opposite directions that do not change the object's motion?
a) Friction
b) Weight
c) Balanced Forces
Balanced Forces
How does the mass of an object affect it's motion?
a) It has no effect
b) The less the mass the less effect a force will have
c) The greater the mass the greater the effect a force will have
The greater the mass the greater the effect a force will have
If a car is traveling at 25 mph it is an example of _________.
a) acceleration
b) speed
c) density
speed
What Newton's law is the reasoning behind trucks cargo kept moving when the truck stopped. Picture A
a) Newton's 1st Law
b) Newton's 2nd Law
c9 Newton's 3rd Law
Newton's 1st Law
Which of Newton's laws is represented by this image?Picture B
a) Newton's 1st Law
b) Newton's 2nd Law
c) Newton's 3rd Law
Newton's 2nd Law
A student drew the model car shown for a class project. What was he most likely trying to model?
Picture C
a) The speed of a car
b) The forces acting on a car
c) The distance a car might move
The forces acting on a car
Gravity acts between two objects even if they are not touching.
True or False
True
What law of motion does this picture represent?
__________________________________
Picture d
Third Law of Motion
Which one of Newton’s Laws of Motion best explains why the dishes do not move when the table cloth is removed?
Picture e
First Law of Motion
_____________________ is a force of attraction between two objects. It acts even when objects are not touching.
-leaning against a wall
-gravity
-catching a baseball
gravity
A large force will cause a _______________ change in the motion of an object. A small force will cause _____________ change.
-little/ -large
-large/ little
large/ little
What is an example of a force being applied and nothing happening?
leaning against a wall
-catching a baseball
-kicking a soccer ball
leaning against a wall
What is another name for Newton’s 1st law?
Law of Inertia
Law of Acceleration
Law of Action/Reaction
Law of Inertia
What is the formula for the law of acceleration?
M = F x A
A = F x M
F = M x A
F = M x A
Letting go of a balloon full of air is demonstrating Newton's ______________ because the air comes out of the back and the balloon moves forward.
1st law of motion
2nd law of motion
3rd law of motion
3rd law of motion
A 20 kg bike accelerates at 10 m/s2. What was the force? _______________
25 Newtons
20 Newtons
200 Newtons
200 Newtons
Which is the best example of Newton's First Law of Motion?
A basketball thrown in the air falls to the ground.
-A soccer ball remains motionless until it is kicked by a player.
-A baseball player swings at an approaching ball.
-A soccer ball remains motionless until it is kicked by a player.