WorksheetsUnit 1 Review: Force and Motion
Total questions: 20
Worksheet time: 10mins
An object such as a hammer weighs less on the Moon than on Earth. This is because the Moon has a...
thinner atmosphere than Earth
smaller diameter than Earth
stronger magnetic field than Earth
lower mass than Earth
Jeremy walked at an average rate of speed of 3 kilometers per hour (km/h). How far had Jeremy walked in 30 minutes?
0.1 km
1.5 km
10 km
90km
A car traveling in a northeasterly direction at a rate of 50 km/h represents which of the following?
speed
velocity
acceleration
deceleration
What causes a ship carrying heavy cargo to take more time to come to a stop than an identical ship carrying lighter cargo if both ships are traveling at the same speed?
increased friction
greater momentum
greater acceleration
more constant velocity
A student hears thunder 5 seconds after seeing lightning. If the speed of sound is 340 m/s, approximately how far is the lightning from the student?
68 m
345 m
850 m
1,700 m
The force of gravitational attraction between Earth and any object on Earth is measured as...
mass
weight
volume
density
If the mass of an object on Earth is 18 grams, what would the mass of the same object be on the Moon?
0 grams
3 grams
9 grams
18 grams
The action of swimmers using their arms to propel themselves through the water is an example of what law?
Newton's first law of motion
Newton's third law of motion
law of conservation of linear moment
law of conservation of angular momentum
Which of these causes matter to resist a change in motion?
inertia
friction
gravity
weight
How does speed compare to the velocity of an object?
Speed has direction, while velocity does not.
Velocity has direction, while speed does not.
Both speed and velocity include the direction of an object.
Neither speed nor velocity include the direction of an object.
A few seconds after opening up a parachute, a skydiver reaches terminal velocity. Why does the skydiver eventually reach terminal velocity?
because the parachute increases speed of the skydiver
because the surface of the parachute decreases when it is opened
because the force of air resistance equals the weight of the skydiver
because the force of gravity on the skydiver is greater than the force of air resistance
How does gravity affect an object as it falls?
it prevents friction from acting on the object
it determines the rate at which the object falls
it changes the total mass of the object as it falls
it reduces the weight of the object as it gets closer to sea level
What is the weight, in newtons, of a 52-kilogram object on Earth's surface?
(Note: The acceleration due to gravity is 9.8 m/s².)
449 newtons
510 newtons
532 newtons
561 newtons
What type of friction occurs when an eraser is rubbed across a sheet of paper?
fluid
rolling
sliding
static
Which would most likely be classified as an event involving sliding friction?
a skier moving down a mountain
a balloon floating up into the air
a paddleboat floating in a pond
a ball moving down a hill
What type of friction does an airplane encounter while it is flying?
fluid friction
static friction
sliding friction
rolling friction
When water is moving through a pipe it is classified as what type of friction?
static
rolling
sliding
fluid
I put my hamster in a ball for exercise and I then accidentally kicked her down a hill. What kind of friction is in between the ball and the hill?
rolling
sliding
fluid
static
Lewis was going 201 mph in a school zone. He slammed on the brakes and the tires squealed as he slowed down until he made a complete stop so he wouldn't hit a kid. What types of friction exist between the tires and the road?
rolling and sliding
Take him to jail.
static and sliding
WHAT?
There are ____ types of friction.
three
two
four
five
