What I know
A student is wanting to measure the force needed to move an object. What is the best instrument to find force?
A. Trip beam balance
B. A ruler
c. Spring balance
What is a Spring balance
Which force most likely explains why skates roll differently on surfaces such as wood, cement, rubber, or carpet?
F Magnetism
G Gravity
H Pulling
J Friction
J Friction
Gravity is a contact force.
1. True
Which word describes a push or pull on an object?
Position
Hypothesis
Mass
Force
Force
When a ball is kicked, ______________ causes the ball to change location.
position
movement
gravity
friction
movement
Students are investigating the effects of pulling a rubber band with different forces. What safety equipment should be used?
What is safety goggles
Which force most likely helps players score points in a basketball game? A Friction
B Pulling
C Magnetism
D Gravity
D Gravity
. What are 3 things which can affect the amount of friction two objects have together?
a. Speed b. Shape c. Weight
d. Mass e. Texture f. Gravity
Weight , shape, texture
A polar bear slides down an ice covered hill. As he slides, he slows down. Eventually he comes to a stop. What force acts on an object to slow or stop its motion?
friction
The two things that determine the strength of gravity on an object are ____ and _______.
Mass and distance
Justin timed how fast a a ping pong ball, and a tennis ball rolled down a ramp that was five inches high and 3 inches wide. He recorded his observations. What
should he do next?
A Repeat this investigation using 3 different balls.
B Change the width of the ramp.
C Repeat this identical procedure several times.
D Change the height of the ramp.
C Repeat this identical procedure several times.
Gravity on the Moon is ________ the gravity on Earth.
Gravity and friction are examples of .
3. Forces
A student drops a ball from shoulder height. The ball bounces 5 times before coming to a stop. What force causes the ball to fall to the ground?
Gravity
_____ is the force that always acts in the opposite direction of the motion of an object.
Friction
A student wanted to see how his toy car would roll on different types of flooring. He decided to roll the car on a tile floor, a wood floor, and a carpeted floor.
His experiment was designed to test the effects of which of the following forces?
J Friction
What force causes rivers to run downhill?
Gravity
Students wanted to investigate if water balloons dropped from greater heights made larger splatters. This experiment is an investigation of the effect of which of the following?
Temperature
Sound
Gravity
Magnetism
gravity
When conducting an experiment, in order to get reliable results, it is important to:
Disregard results that do not match your hypothesis
Test many different variables at the same time
Test all forces at the same time
Repeat the investigation several times
Repeat the investigation several times
Force produced by magnetism
magnetism
When riding a bicycle, which force most likely causes the bicycle to move forward? A Gravity pulling the bike down to the ground
B Magnetism between the wheels and pedals
C Pushing the pedals
D Pulling the pedals
C Pushing the pedals
_________is required to overcome gravity.
1. Mass
What is the force that slows down or eventually stops an objects motion?
friction
To make an object move, it must be pushed or pulled with ____________.
force
direction
gravity
friction
Force
What is PUSH AND PULL?
PULL- To use force to cause something to move closer.
Push- To use force to cause something move away